Question 1: Palette 1/224

Allen MCQ

Nissl's bodies found in neurons are :-

A

Made of DNA

B

Masses of RER

C

Help in formation of neurofibrils

D

Masses of mitochondria

Question 2: Palette 2/224

Allen MCQ

"Nodes of Ranviers" are found in :-

A

Brain

B

Heart

C

Axon

D

Eye

Question 3: Palette 3/224

Allen MCQ

Afferent nerve fiber conducts impulse from :-

A

C.N.S. to effector

B

Receptor to C.N.S.

C

Receptor to effector

D

Effector to receptor

Question 4: Palette 4/224

Allen MCQ

Nissl granules occur in which part and what is their function ?

A

Neurons and help in protein synthesis

B

Blood and help in nutrition and excretion

C

Sarcoplasm and help in contraction

D

Mucous cell and secrete mucous

Question 5: Palette 5/224

Allen MCQ

The parts of the neurons that perform basic cellular functions such as protein synthesis etc. :–

A

Axons

B

Axon hillock

C

Synaptic knobs

D

Soma

Question 6: Palette 6/224

Allen MCQ

The nerves leading to the central nervous system are called :-

A

Afferent

B

Efferent

C

Motor

D

None

Question 7: Palette 7/224

Allen MCQ

Unit of nervous system :-

A

Neuron

B

Neuroglia

C

Axon

D

Cyton

Question 8: Palette 8/224

Allen MCQ

Integrative system in the body are :-

A

Endocrine system

B

Nervous system

C

Blood vascular system

D

Both (1) & (2)

Question 9: Palette 9/224

Allen MCQ

The Schwann sheath is :-

A

A non-myelinated nerve fibres

B

Associated with myelin sheath

C

A connective tissue cell

D

Associated with myelinated & non-myelinated nerve fibre

Question 10: Palette 10/224

Allen MCQ

Rapid integration of the functional activities in human is achieved by :-

A

Nervous system

B

Endocrine system

C

Blood

D

Muscular system

Question 11: Palette 11/224

Allen MCQ

Which one of the following types of neurons are most numerous in the body ?

A

Unipolar

B

Multipolar

C

Bipolar

D

Pseudounipolar

Question 12: Palette 12/224

Allen MCQ

Sheath of schwann occurs on :-

A

Neurons

B

Axons

C

Dendrons

D

Neuroglia

Question 13: Palette 13/224

Allen MCQ

Which cell-organellae absent in neurons ?

A

Mitochondria

B

Ribosome

C

Centriole

D

Nucleus

Question 14: Palette 14/224

Allen MCQ

Nerve fibres are surrounded by an insulating fatty layer called :-

A

Adipose sheath

B

Myelin sheath

C

Hyaline sheath

D

Peritoneum

Question 15: Palette 15/224

Allen MCQ

Myelinogenesis (Myelin formation) process occur in C.N.S. (central nervous system)

A

By schwann cells

B

By oligodendrocytes

C

By Axolemma

D

By neurolemma

Question 16: Palette 16/224

Allen MCQ

Which of the following statement is correct for node of Ranvier of nerve ?

A

Neurilemma is discontinuous

B

Myelin sheath is discontinuous

C

Both neurilemma & Myelin sheath are discontinuous

D

Covered by myelin sheath

Question 17: Palette 17/224

Allen MCQ

The “Nissle's granules” of nerve cell's are made up of :-

A

Ribosome

B

Protein

C

DNA

D

Mitochondria

Question 18: Palette 18/224

Allen MCQ

Non Myelinated axons differ from myelinated in that they :-

A

Are more excitable

B

Lack nodes of Ranvier

C

Are not capable of regeneration

D

Are not associated with Schwann cells

Question 19: Palette 19/224

Allen MCQ

If myelin sheath is continuous in myelinated nerve fibre than what will happens in neuronal conduction?

A

Velocity is increased

B

Conduction is slow

C

Conduction is stopped

D

No effect

Question 20: Palette 20/224

Allen MCQ

Nerve cells do not possess -

A

Neurilemma

B

Sarcolemma

C

Dendrites

D

Axon

Question 21: Palette 21/224

Allen MCQ

Myelin sheath covers which of the following ?

A

Muscle fibre

B

Nerve fibre

C

Collagen fiber

D

Tendons

Question 22: Palette 22/224

Allen MCQ

Dendrites are associated with which system ?

A

Nervous system

B

Digestive system

C

Muscular system

D

Blood vascular system

Question 23: Palette 23/224

Allen MCQ

The gray matter differs from white matter in the:-

A

Absence of axons

B

Absence of myelin sheath

C

Presence of myelin sheath

D

Absence of nurilemma

Question 24: Palette 24/224

Allen MCQ

Nerve cells possess
(a) Dendrites (b) Axon (c) Sarcolemma (d) Neurilemma

A

a, b

B

a, b, c

C

a, b, d

D

a, b, c, d

Question 25: Palette 25/224

Allen MCQ

The nervous system is derived from :-

A

Ectoderm

B

Endoderm

C

Mesoderm

D

Ecto and Mesoderm

Question 26: Palette 26/224

Allen MCQ

The nerve cell can be distinguished from other cells of the body by the presence of :-

A

Neuroplasm

B

Neurolemma

C

Mitochondria

D

Neurites

Question 27: Palette 27/224

Allen MCQ

Function of nervous tissue is :-

A

Irritability or Excitability

B

Sensitivity

C

Elasticity

D

Contraction

Question 28: Palette 28/224

Allen MCQ

Which of the following processes occur only in animals ?

A

Hormonal control

B

Respiration

C

Nervous control

D

Nutrition

Question 29: Palette 29/224

Allen MCQ

Which cell in our body is more than a feet long?

A

Nerve cell

B

Muscle cell

C

Bone cell

D

Gland cell

Question 30: Palette 30/224

Allen MCQ

Which cell stop dividing after birth ?

A

Epithelium

B

Neuron

C

Glial cells

D

Liver

Question 31: Palette 31/224

Allen MCQ

In which animal, nerve cell is present but brain is absent ?

A

Sponge

B

Earthworm

C

Cockroach

D

Hydra

Question 32: Palette 32/224

Allen MCQ

Intercellular communication in multicellular organism occurs through -

A

Nervous system only

B

Digestive system only

C

Respiratory system only

D

Both nervous and endocrine system

Question 33: Palette 33/224

Allen MCQ

Myelin sheath is derived from :

A

Astrocytes cells

B

Schwann cells

C

Nerve cells

D

All of these

Question 34: Palette 34/224

Allen MCQ

Synaptic vesicles are found in –

A

Presynaptic neuron

B

Post synaptic neuron

C

Synaptic cleft

D

None of these

Question 35: Palette 35/224

Allen MCQ

Nissl's granules are absent in :

A

Axon

B

Cyton

C

Dendron

D

Dendrites

Question 36: Palette 36/224

Allen MCQ

In a myelinated neuron, two adjacent myelin sheaths are separated by gaps called :

A

Nodes of Ranvier

B

Synaptic cleft

C

Synaptic knob

D

Neural plate

Question 37: Palette 37/224

Allen MCQ

Nissl's granules are found in :

A

Liver cells

B

Nerve cells

C

Kidney

D

Heart

Question 38: Palette 38/224

Allen MCQ

Chemical transmission of nerve impulses from one neuron to another at a synapse is by:-

A

Cholesterol

B

Acetylcholine

C

Cholecystokinin

D

ATP

Question 39: Palette 39/224

Allen MCQ

Saltatory conduction occurs in :-

A

Non-myelinated fibers

B

Myelinated fibers

C

Both of them

D

None of them

Question 40: Palette 40/224

Allen MCQ

When a nerve fibers is stimulated the inside of the membrane becomes :-

A

Filled with acetyl choline

B

Negatively charged

C

Positively charged

D

Neutral

Question 41: Palette 41/224

Allen MCQ

"Jumping of the action potential" at the nodes of ranvier is known as :-

A

Saltatory conduction

B

Neuro transmission

C

Recovery phase

D

Active phase

Question 42: Palette 42/224

Allen MCQ

Nerve impulses are generated by nerve fibers only when the membrane shall become more permeable to :-

A

Adrenaline

B

Phosphorus

C

Sodium ions

D

Potassium ions

Question 43: Palette 43/224

Allen MCQ

Speed of impulse on nerves in mammals is :-

A

1 meter/sec.

B

100 meter/sec.

C

1000 meter/sec.

D

None of these

Question 44: Palette 44/224

Allen MCQ

The functional connection between two neurons is called :-

A

Synapse

B

Synapsis

C

Chiasma

D

Chiasmata

Question 45: Palette 45/224

Allen MCQ

Conduction of nerve impulse is :-

A

Faster in non-myelinated fibres

B

Faster in myelinated fibres

C

No difference in the rate of conduction in myelinated & non-myelinated fibres

D

None of the above

Question 46: Palette 46/224

Allen MCQ

A short period during which a nerve is unable to conduct nerve impulse is called :-

A

Synaptic delay

B

Refractory period

C

Resting potential

D

Critical period

Question 47: Palette 47/224

Allen MCQ

When the axons membrane is positively charged outside and negatively charged inside, then the condition is known as :-

A

Action potential

B

Resting potential

C

Active potential

D

Differential potential

Question 48: Palette 48/224

Allen MCQ

The main function of acetylcholine is to :-

A

Increase heart beat

B

Help in synaptic transmission of nerve impulse

C

Help in conduction of nerve impulse through axon

D

Control reflex action

Question 49: Palette 49/224

Allen MCQ

Depolarization of axolemma during nerve conduction takes place because of-

A

Equal amount of Na⁺& K⁺ move out across axolemma

B

Na⁺ move inside

C

More Na⁺ outside

D

None

Question 50: Palette 50/224

Allen MCQ

In the resting state of the neural membrane, diffusion due to concentration gradients, if allowed, would drive :-

A

K⁺ and Na⁺ out of the cell

B

Na⁺ into the cell

C

Na⁺ out of the cell

D

K⁺ into the cell

Question 51: Palette 51/224

Allen MCQ

Unidirectional transmission of a nerve impulse through synapse fibre is due to :–

A

Nerve fibre is insulated by a medullary sheath.

B

Sodium pump starts operating only at the cyton and then continues into the nerve fibre.

C

Neurotransmitters are released by dendrites and not by axon endings.

D

Neurotransmitters are released by the axon endings and not by dendrites.

Question 52: Palette 52/224

Allen MCQ

Repolarisation of Neuron is occured due to:-

A

Influx of Na⁺

B

Influx of K⁺

C

Efflux of Na⁺

D

Efflux of K⁺

Question 53: Palette 53/224

Allen MCQ

If GABA is released at synapse area then what will happens :-

A

Depolarization of neuron

B

Repolarization of neuron

C

Hyperpolarization of neuron

D

No effect

Question 54: Palette 54/224

Allen MCQ

Nerve impulse travel through synapse with the help of

A

Acetylcholine and sympathetin

B

Choline and acetylcholine

C

Adrenaline and noradrenaline

D

None of the above

Question 55: Palette 55/224

Allen MCQ

A typical value of resting membrane potential is:

A

–40 mv

B

–60 mv

C

–70 mv

D

–80 mv

Question 56: Palette 56/224

Allen MCQ

Pre synaptic membrane is part of :

A

Dendron

B

Axon hillock

C

Telodendria

D

Soma

Question 57: Palette 57/224

Allen MCQ

Acetylcholinesterase enzyme splits acetylcholine into :

A

Acetone and choline

B

Acetic acid and choline

C

Amino acid and choline

D

Aspartic acid and acetylcholine

Question 58: Palette 58/224

Allen MCQ

During nerve impulse conduction permeability of a membrane is greater for :

A

Na⁺

B

K⁺

C

Equal for both (1) and (2)

D

Ca⁺²

Question 59: Palette 59/224

Allen MCQ

Acetylcholinesterase help in breaking :

A

Synapse

B

Acetylcholine

C

Dendrites

D

Axon

Question 60: Palette 60/224

Allen MCQ

Action potential of a nerve cell is generated by :

A

Na⁺

B

K⁺

C

Ca⁺⁺

D

Cl⁻

Question 61: Palette 61/224

Allen MCQ

Connection between axon and dendrite is :

A

Synapse

B

Synapsis

C

Desmosome

D

Tight junction

Question 62: Palette 62/224

Allen MCQ

During repolarisation of nerve :

A

K⁺ gates closes and Na⁺ gates opens

B

Na⁺ channels are closed and K⁺ channels are open

C

Both gates remain open

D

Both K⁺ and Na⁺ gates are closed

Question 63: Palette 63/224

Allen MCQ

Which of the following diagram illustrates the distribution of Na⁺ and K⁺ ions in a section of non-myelinated axon which is at resting potential?

A

B

C

D

Question 64: Palette 64/224

Allen MCQ

The one way or unidirectional transmission of nerve cells is due to :

A

Synapses

B

Myelin sheath

C

Membrane polarity

D

Interneurons

Question 65: Palette 65/224

Allen MCQ

The forebrain develops into-

A

Diencephalon and Cerebrum

B

Diencephalon and Cerebellum

C

Diencephalon and Medulla

D

Diencephalon and Pons

Question 66: Palette 66/224

Allen MCQ

Nerve impulse initiates with the movement of:

A

K⁺

B

Na⁺

C

Ca⁺⁺

D

Mg⁺²

Question 67: Palette 67/224

Allen MCQ

Na⁺/K⁺ pump in a cell is an example of –

A

Osmosis

B

Diffusion

C

Passive transport

D

Active transport

Question 68: Palette 68/224

Allen MCQ

Corpus callosum connects :-

A

Two cerebral hemisphere

B

Two optic lobes

C

Two olfactory lobes

D

Optic chiasma

Question 69: Palette 69/224

Allen MCQ

Outer most covering of brain is called :-

A

Choroid

B

Duramater

C

Piamater

D

Arachnoid

Question 70: Palette 70/224

Allen MCQ

The membrane which cover the brain and the spinal cord is :-

A

White matter

B

Grey matter

C

Peritonium

D

Menix

Question 71: Palette 71/224

Allen MCQ

Cerebellum is concerned with :-

A

Co-ordination of muscular movement

B

Memory

C

Vision

D

Reflex action

Question 72: Palette 72/224

Allen MCQ

Crura cerebri is located in :-

A

Fore brain

B

Hind brain

C

Mid brain

D

None

Question 73: Palette 73/224

Allen MCQ

Piamater is :-

A

Inner most meninge

B

Middle meninge

C

Outer meninge

D

None

Question 74: Palette 74/224

Allen MCQ

The box like bony structure which encloses the brain is called :-

A

Cranium

B

Pericardium

C

Peritoneum

D

Periosteum

Question 75: Palette 75/224

Allen MCQ

In brain crura cerebri is a structure made of :-

A

Six bands of nerve fibres

B

Eight bands of nerve fibres

C

Two large bands of nerve fibres

D

Four bands of nerve fibres

Question 76: Palette 76/224

Allen MCQ

Which one of the following menix is present only in mammalian brain :-

A

Duramater

B

Arachnoid

C

Piamater

D

None of them

Question 77: Palette 77/224

Allen MCQ

Small, solid and four optic lobes or colliculus called corpora quadrigemina are found in :-

A

Mammals

B

Amphibians

C

Aves

D

Reptiles

Question 78: Palette 78/224

Allen MCQ

Hypothalamus is situated on the :-

A

Upper lateral surface of diencephalon

B

Lower lateral surface of diencephalon

C

Ventral side of optic lobes

D

Dorsal side of optic lobes

Question 79: Palette 79/224

Allen MCQ

Epithalamus is situated on the :-

A

Roof of diencephalon

B

Lateral wall of diencephalon

C

Dorsal side of optic lobes

D

Floor of diencephalon

Question 80: Palette 80/224

Allen MCQ

Which of the following is a richly vascular layer with lots of blood capillaries :-

A

Duramater

B

Piamater

C

Epidermis of skin

D

Both (1) & (2)

Question 81: Palette 81/224

Allen MCQ

Which of the following is not a part of hind brain :–

A

Medulla oblongata

B

Thalamus

C

Cerebellum

D

Pons

Question 82: Palette 82/224

Allen MCQ

Which is correct about Pons Varolii ?

A

Situated between midbrain & M.O.

B

Pons contains Pneumotaxic centre

C

Inner gray, outer white matter

D

All of the above

Question 83: Palette 83/224

Allen MCQ

If the corpus callosum is removed in mammalian brain then what will be affected:-

A

Coordination of Cerebrum

B

Involuntary activity of brain

C

Coordination of Cerebellum

D

Behaviour and emotional disturbances

Question 84: Palette 84/224

Allen MCQ

The name of nervous band connecting both the cerebral hemispheres in your brain -

A

Corpus albicans

B

Corpus callosum

C

Corpus striatum

D

Corpus spongiosum

Question 85: Palette 85/224

Allen MCQ

Arbor vitae is a part of -

A

Cerebrum

B

Cerebellum

C

Midbrain

D

Forebrain

Question 86: Palette 86/224

Allen MCQ

Human brain is covered by a hard layer called

A

White matter

B

Duramater

C

Piamater

D

Gray matter

Question 87: Palette 87/224

Allen MCQ

Which of the following is the part of mid brain?

A

Cerebrum

B

Diencephalon

C

Corpora quadrigemina

D

None of these

Question 88: Palette 88/224

Allen MCQ

The function of cerebrospinal fluid does not include:

A

Protection of brain and spinal cord by containing antibody

B

Protection of delicate brain and spinal cord from shock

C

As a medium for excretion of waste product

D

Buoyancy to brain

Question 89: Palette 89/224

Allen MCQ

Cerebral hemispheres of mammals consist of-

A

Outer gray matter and central white matter

B

Outer white matter and central gray matter

C

Gray matter and white matter inter mingled

D

Gray matter only

Question 90: Palette 90/224

Allen MCQ

Which of the following forms the cerebrospinal fluid:-

A

Choroid plexus

B

Duramater

C

Arachnoid mater

D

Cerebrum and spinal cord

Question 91: Palette 91/224

Allen MCQ

If Broca's area is completely injured then what happen firstly:–

A

Concerning speech muscle are paralysed

B

Speech stuttered & not clear

C

Unable to speak

D

Only able to speak written word

Question 92: Palette 92/224

Allen MCQ

In man the osmotic centres are situated in -

A

Cerebrum

B

Hypothalamus

C

Pituitary gland

D

Medulla oblongata

Question 93: Palette 93/224

Allen MCQ

Hypothalamus does not control -

A

Libido

B

Osmoregulation

C

Creative thinking and consciousness

D

Thermoregulation

Question 94: Palette 94/224

Allen MCQ

Choroid plexus is a network of -

A

Nerves

B

Muscle fibres

C

Capillaries

D

Lymph vessels

Question 95: Palette 95/224

Allen MCQ

Voluntary activites of body are controlled by-

A

Diencephalon

B

Cerebrum

C

Crura cerebri

D

Cerebellum

Question 96: Palette 96/224

Allen MCQ

Thermo regulatory center in human brain is :-

A

Pituitary

B

Diencephalon

C

Hypothalamus

D

None

Question 97: Palette 97/224

Allen MCQ

Respiratory control in brain occurs in :-

A

Medulla oblongata

B

Cerebellum

C

Hypothalamus

D

Pericardium

Question 98: Palette 98/224

Allen MCQ

Drinking of alcohol affects mostly:-

A

Cerebrum

B

Cerebellum

C

Medulla oblongata

D

Diencephalon

Question 99: Palette 99/224

Allen MCQ

Which part of the brain regulates the body temperature, hunger and water balance :-

A

Hypothalamus

B

Infundibulum

C

Medulla oblongata

D

Pons veroli

Question 100: Palette 100/224

Allen MCQ

Most of the involuntary action are controlled by :-

A

Medulla oblongata

B

Cerebrum

C

Cerebellum

D

Diencephalon

Question 101: Palette 101/224

Allen MCQ

When the medulla oblongata (M.O.) is damaged, then what happen ?

A

Immediately die

B

Die after few hrs.

C

Live at 1 hrs & after it may die

D

No affect

Question 102: Palette 102/224

Allen MCQ

Cerebellar hemisphere is the centre of :-

A

Taste

B

Smell

C

Balance

D

Thinking

Question 103: Palette 103/224

Allen MCQ

Which part of brain is supposed to be damaged if in an accident, a person lost control of water balance, hunger and body temp. :-

A

Cerebellum

B

Hypothalamus

C

Medula oblongata

D

Corpora quadrigemina

Question 104: Palette 104/224

Allen MCQ

Which part of brain controls emotions like love, anger and pleasure –

A

M. O.

B

Hypothalamus

C

Mid brain

D

Cerebellum

Question 105: Palette 105/224

Allen MCQ

Brain of human differs from that of frog in having:-

A

Large olfactory lobe

B

Small hypothalamus

C

Small cerebellum

D

Corpus callosum

Question 106: Palette 106/224

Allen MCQ

Difference found between brain of frog and Human is :-

A

Presence of corpus callosum

B

Corpus albicans

C

Four optic lobes

D

All of these

Question 107: Palette 107/224

Allen MCQ

Hippocampal lobes are the parts of :-

A

Olfactory lobes

B

Cerebrum

C

Cerebellum

D

Medulla Oblongata

Question 108: Palette 108/224

Allen MCQ

Which part of the brain is more developed in human?

A

Medulla

B

Cerebellum

C

Cerebrum

D

Optic lobes

Question 109: Palette 109/224

Allen MCQ

Which of the following is not correctly matched :-

A

Cerebrum – Olfaction

B

Hypothalamus – Pituitary

C

Cerebellum – Balance

D

Mid brain – Temperature regulation

Question 110: Palette 110/224

Allen MCQ

The correct sequence of meninges of brain from outside to inside is :

A

Duramater → Arachnoid → Piamater

B

Arachnoid → Duramater → Piamater

C

Piamater → Duramater → Arachnoid

D

Duramater → Piamater → Arachnoid

Question 111: Palette 111/224

Allen MCQ

The thermoregulatory centre in the body of man is found in :

A

Diencephalon

B

Hypothalamus

C

Pituitary

D

Skin

Question 112: Palette 112/224

Allen MCQ

Part of brain concerned with the muscular movement is :

A

Cerebellum

B

Thalamus

C

Hippocampus

D

Temporal lobe of cerebrum

Question 113: Palette 113/224

Allen MCQ

In human corpus callosum connects :

A

The two optic lobes

B

Bone and muscle

C

The two cerebral hemispheres

D

Two lobes of pituitary gland

Question 114: Palette 114/224

Allen MCQ

Broca's area of speech is present in :

A

Parietal lobe

B

Temporal lobes

C

Temporal and occipital lobe

D

Frontal lobe

Question 115: Palette 115/224

Allen MCQ

In human body muscular co-ordination is controlled by:

A

Spinal cord

B

Cortex

C

Cerebellum

D

Cerebral hemisphere

Question 116: Palette 116/224

Allen MCQ

The optic lobe in humans are represented by the corpora –

A

Bigemina

B

Arenacea

C

Striata

D

Quadrigemina

Question 117: Palette 117/224

Allen MCQ

Which of the following is not an organ of the central nervous system :-

A

Brain

B

Spinal cord

C

Medulla oblongata

D

Vagus

Question 118: Palette 118/224

Allen MCQ

Ventral root of spinal nerve has :-

A

Sensory fibers

B

Motor fibers

C

Sensory and motor fibers both

D

None of these

Question 119: Palette 119/224

Allen MCQ

Cavity in spinal cord is called :-

A

Enterocoel

B

Blastocoel

C

Schizocoel

D

Neurocoel

Question 120: Palette 120/224

Allen MCQ

Last end of spinal cord is called :-

A

Cauda equina

B

Filum terminale

C

Funiculus

D

Conus medullaris

Question 121: Palette 121/224

Allen MCQ

Through which aperture the spinal cord passes out of skull :-

A

Foramen of monro

B

Foramen of paninze

C

Foramen of magnum

D

None of the above

Question 122: Palette 122/224

Allen MCQ

The "butter fly" like structure surrounding the central cavity of human's spinal cord is called :-

A

Funiculus

B

Horn

C

White matter

D

Gray matter

Question 123: Palette 123/224

Allen MCQ

Which has H-shaped gray matter ?

A

Cerebrum

B

Spinal cord

C

Cerebellum

D

Medulla oblongata

Question 124: Palette 124/224

Allen MCQ

Which cranial nerves are sensory :-

A

1, 2, 8

B

3, 4, 6, 11, 12

C

5, 7, 9, 10

D

None of them

Question 125: Palette 125/224

Allen MCQ

Smallest cranial nerve is :-

A

X-cranial nerve

B

VI-cranial nerve

C

VII-cranial nerve

D

II-cranial nerve

Question 126: Palette 126/224

Allen MCQ

Which cranial nerve is the longest and supplies all parts of body other than head :-

A

Trochlear nerve

B

Vagus nerve

C

Occulomotor nerve

D

Auditary nerve

Question 127: Palette 127/224

Allen MCQ

Purely motor cranial nerve includes :-

A

I, V, VII

B

I, II, IV

C

III, IV, VI, XI

D

None of these

Question 128: Palette 128/224

Allen MCQ

Parasympathetic system increase activity of:-

A

Lacrimal gland, sweat gland, arrector pili

B

Heart, lacrimal gland, pancreas

C

Heart, adrenal gland and sweat gland

D

Gut, urinary bladder and digestive gland

Question 129: Palette 129/224

Allen MCQ

Which nerve is purely motor :-

A

Abducens

B

Trigeminal

C

Olfactory

D

Vagus

Question 130: Palette 130/224

Allen MCQ

The III, VI and XI cranial nerve in mammals are respectively :-

A

Occulomotor, abducens and hypoglossal

B

Occulomotor, abducens and spinal accessory

C

Trochlear, facial and spinal accessory

D

Trigeminal, abducens and vagus

Question 131: Palette 131/224

Allen MCQ

Heart is innervated by :-

A

Vagus

B

Trigeminal

C

Facial

D

Glossopharyngeal

Question 132: Palette 132/224

Allen MCQ

Number of spinal nerves in human :-

A

31 pairs

B

32 pairs

C

12 pairs

D

37 pairs

Question 133: Palette 133/224

Allen MCQ

Which nerve originates from medulla :-

A

Optic

B

Occulomotor

C

Vagus

D

Trigeminal

Question 134: Palette 134/224

Allen MCQ

In human, autonomic nervous system is composed of :-

A

Sympathetic and parasympathetic nerves

B

Cranial and spinal nerves

C

Brain and spinal nerves

D

Medullated and non-medullated nerves

Question 135: Palette 135/224

Allen MCQ

How many pairs of cranial nerves are purely sensory :-

A

Two

B

Three

C

Four

D

Five

Question 136: Palette 136/224

Allen MCQ

Optic nerve is the :-

A

Fifth cranial nerves

B

Second cranial nerve

C

Seventh cranial nerve

D

Ninth cranial nerve

Question 137: Palette 137/224

Allen MCQ

All spinal nerves are :-

A

Motor

B

Sensory

C

Mixed

D

None of the above

Question 138: Palette 138/224

Allen MCQ

Which of the following nerve helps in maintaining the equilibrium of body :-

A

Trochlear

B

Abducens

C

Auditory

D

Facial

Question 139: Palette 139/224

Allen MCQ

Autonomic nervous system controls :-

A

Conditioned reflexes

B

Functioning of spinal cord

C

Functioning of visceral organs

D

Reflex actions

Question 140: Palette 140/224

Allen MCQ

Stimulation of sympathetic nervous system causes :-

A

Constriction of blood vessels and high blood pressure

B

Dilation of bronchi & pupil

C

Erection of hair

D

All of the above

Question 141: Palette 141/224

Allen MCQ

The two additional cranial nerves present in mammals are :-

A

Pharyngeal & vagus

B

Spinal accessory and hypoglossal

C

Trigeminal and glossopharyngeal

D

Hypoglossal and sciatic

Question 142: Palette 142/224

Allen MCQ

Which of the following spinal nerves does not found in human :-

A

Caudal nerves

B

Sacral nerves

C

Cervical nerves

D

Lumbar nerves

Question 143: Palette 143/224

Allen MCQ

Which of the following cranial nerves of human are mixed in nature :-

A

Vagus & trigeminal

B

Optic & vagus

C

Auditory & olfactory

D

Trochlear and vagus

Question 144: Palette 144/224

Allen MCQ

The cranial and spinal nerves are includedunder-

A

Autonomic nervous system

B

Peripheral nervous system

C

Central nervous system

D

Cutaneous nervous system

Question 145: Palette 145/224

Allen MCQ

Conservation of energy take place by :-

A

Sympathetic nervous system

B

Parasympathetic nervous system

C

Reflex action

D

None

Question 146: Palette 146/224

Allen MCQ

If parasympathetic nerve is cut, then heart beat–

A

Unaffected

B

Decreases

C

Increases

D

Stop

Question 147: Palette 147/224

Allen MCQ

Norepinephrine leads to increase in :–

A

Blood pressure

B

Urine production

C

Cellular respiration

D

Release of epinephrine

Question 148: Palette 148/224

Allen MCQ

In a man, if abducens nerve is injured, which one of the following functions will be affected?

A

Movement of the neck

B

Movement of the tongue

C

Movement of the eye ball

D

Swallowing

Question 149: Palette 149/224

Allen MCQ

Which cranial nerve provides taste sensation in anterior 2/3rd part of tongue –

A

Trigeminal

B

Facial

C

Glossopharyngeal

D

Hypoglossal

Question 150: Palette 150/224

Allen MCQ

In emergency condition, all changes occur in our body except –

A

Heart beat increases

B

Dilates blood vessels of brain, lungs, heart and striated muscle

C

Brochodilation

D

Micturition is done

Question 151: Palette 151/224

Allen MCQ

Which of the following cranial nerve is not a motor nerve ?

A

II

B

III

C

IV

D

XII

Question 152: Palette 152/224

Allen Match the Columns

Match the following human spinal nerves in Column-I with Column-II and choose the correct options :

Column-I	Column-II
(A) Cervical nerves (B) Thoracic nerves (C) Lumbar nerves (D) Coccygeal nerves	(I) 5 pairs (II) 1 pair (III) 12 pairs (IV) 8 pairs

A

A-II, B-IV, C-I, D-III

B

A-IV, B-III, C-I, D-II

C

A-IV, B-II, C-I, D-IV

D

A-I, B-IV, C-II, D-III

Question 153: Palette 153/224

Allen MCQ

9th Pair of cranial nerve in human is -

A

Vagus

B

Trigeminal

C

Hypoglossal

D

Glossopharyngeal

Question 154: Palette 154/224

Allen MCQ

Which of the following is not under the control of vagus nerve ?

A

Gastrointestinal movement

B

Respiratory movement

C

Salivation

D

None of these

Question 155: Palette 155/224

Allen MCQ

Which of the following is released by parasympathtic nervous system ?

A

Serotonin

B

Acetylcholine

C

Epinephrine

D

Norepinephrine

Question 156: Palette 156/224

Allen MCQ

Facial nerve is –

A

Motor

B

Sensory

C

Motor and sensory

D

None of these

Question 157: Palette 157/224

Allen MCQ

Number of cranial nerve in human is -

A

Ten only

B

Ten pairs

C

Twenty pairs

D

Twelve pairs

Question 158: Palette 158/224

Allen MCQ

Which of the following pair is mismatched–

A

Cerebrum – voluntary activities

B

Cerebellum – body balance

C

M. O. – Pneumotaxic centre

D

Spinal cord – reflex action

Question 159: Palette 159/224

Allen MCQ

After sympathetic stimulation, which type of activities are not present in human being :

A

Tachycardia

B

Bronchodilation

C

Micturition

D

Semen Ejaculation

Question 160: Palette 160/224

Allen MCQ

Which of the following two systems are opposite in action to each other ?

A

Nervous – Sensory

B

Nervous – Endocrine

C

Sensory – Endocrine

D

Parasympathetic – Sympathetic

Question 161: Palette 161/224

Allen MCQ

You are watching a horror movie and you notice your heart is beating fast and mouth is dry. It is because of -

A

Fight and flight response

B

Autonomic nervous system

C

Sympathetic nervous system

D

Both (1) and (3)

Question 162: Palette 162/224

Allen MCQ

Movement of tongue is under the control of -

A

Trigeminal

B

Facial

C

Autonomic system

D

Hypoglossal

Question 163: Palette 163/224

Allen MCQ

If dorsal root of spinal cord is broken down then its effect is :-

A

No effect on impulse

B

Impulse is transmitted fast

C

Impulse is transmitted but slowly

D

No impulse is transmitted from receptor

Question 164: Palette 164/224

Allen MCQ

'ANS' effects on

A

Reflex actions

B

Sensory organs

C

Internal organs

D

None of these

Question 165: Palette 165/224

Allen MCQ

Five events in the transmission of nerve impulse across the synapse are given below A. Opening of specific ion channels allows the entry of ions, a new action potential is generated in the post-synaptic neuron. B. Neurotransmitter binds to the receptor on post synaptic membrane C. Synaptic vesicle fuses with pre-synaptic membrane, neurotransmitter releases into synaptic cleft. D. Depolarization of pre-synaptic membrane E. Arrival of action potential at axon terminal. In which sequence to the events occur?

A

E → D → C → B → A

B

A → B → C → D → E

C

A → B → D → C → E

D

E → D → C → A → B

Question 166: Palette 166/224

Allen MCQ

Which of the following is a motor nerve ?

A

Auditory

B

Abducens

C

Optic

D

Trigeminal nerve

Question 167: Palette 167/224

Allen MCQ

Which one of the following is not an effect of sympathetic nervous system –

A

Dilation of pupil

B

Inhibition of peristalsis

C

Elevation of blood pressure

D

Stimulation for saliva secretion

Question 168: Palette 168/224

Allen MCQ

The following diagrammatic representation of reflex action shows knee jerk reflex. In which of the following options corrects words for all the 5 blanks (A to E) are indicated?

A

A-Dorsal root ganglion, B-White matter, C-Gray matter, D-Afferent pathway

B

A-Dorsal root ganglion, B-White matter, C-Interneuron, D-Afferent pathway

C

A-Dorsal root ganglion, B-Gray matter, C-White matter, D-Efferent pathway

D

A-Ventral root ganglion, B-White matter, C-Interneuron, D-Efferent pathway

Question 169: Palette 169/224

Allen MCQ

Reflex action is controlled by :-

A

Muscles

B

Limbs

C

Central nervous system

D

Autonomic nervous system

Question 170: Palette 170/224

Allen MCQ

Find out the correct sequence of a simple reflex are :-

A

Brain-spinal cord - nerves - effector

B

Effector - CNS - sensory nerves - receptor

C

Muscles - spinal cord - brain - receptor

D

Receptor - sensory nerves - CNS - effector

Question 171: Palette 171/224

Allen MCQ

Sight of delicious food usually makes mouth watery, it is a :-

A

Hormonal response

B

Neural response

C

Optic response

D

Olfactory response

Question 172: Palette 172/224

Allen MCQ

Reflex arc consists of :

A

Motor nerve

B

Sensory nerve

C

Both sensory and motor nerves

D

None of these

Question 173: Palette 173/224

Allen MCQ

Which one of the following statements is correct?

A

Neither hormones control neural activity nor the neuron control endocrine activity

B

Endocrine glands regulate neural activity, but not vice versa

C

Neurons regulate endocrine activity, but not vice versa

D

Endocrine glands regulate neural activity, and nervous system regulates endocrine glands

Question 174: Palette 174/224

Allen MCQ

Which one of the following does not act as a neurotransmitter?

A

Norepinephrine

B

Cortisone

C

Acetylcholine

D

Epinephrine

Question 175: Palette 175/224

Allen MCQ

During the transmission of nerve impulse through a nerve fibre, the potential on the inner side of the plasma membrane has which type of electric charge?

A

First positive, then negative and continue to be negative

B

First negative, then positive and continue to be positive

C

First positive, then negative and again back to positive

D

First negative, then positive and again back to negative

Question 176: Palette 176/224

Allen MCQ

Which one of the following pairs of structures distinguishes a nerve cell from other types of cell?

A

Vacuoles and fibres

B

Flagellum and medullary sheath

C

Nucleus and mitochondria

D

Perikaryon and dendrites

Question 177: Palette 177/224

Allen MCQ

During the propagation of a nerve impulse, the action potential results from the movement of :

A

K⁺ from intracellular fluid to extracellular fluid

B

Na⁺ from extracellular fluid to intracellular fluid

C

K⁺ from extracellular fluid to intracellular fluid

D

Na⁺ from intracellular fluid to extracellular fluid

Question 178: Palette 178/224

Allen MCQ

The nerve centres which control the body temperature and the urge for eating are contained in:

A

Cerebellum

B

Thalamus

C

Hypothalamus

D

Pons

Question 179: Palette 179/224

Allen MCQ

A person entering an empty room suddenly finds a snake right in front on opening the door. Which one of the following is likely to happen in his neuro-hormonal control system?

A

Hypothalamus activates the parasympathetic division of brain

B

Sympathetic nervous system is activated releasing epinephrine and norepinephrine from adrenal cortex

C

Sympathetic nervous system is activated releasing epinephrine and norepinephrine from adrenal medulla

D

Neurotransmitters diffuses rapidly across the synaptic cleft and transmit a nerve impulse

Question 180: Palette 180/224

Allen MCQ

A diagram showing axon terminal and synapse is given below. Identify correctly at least two of A-D.

A

C-Neurotransmitter, D-Ca++

B

A-Receptor, C-Synaptic vesicles

C

B-Synaptic connection, D-K+

D

A-Neurotransmitter, B-Synaptic cleft

Question 181: Palette 181/224

Allen MCQ

How do parasympathetic neural signals affect the working of the human heart ?

A

Reduce both heart rate and cardiac output.

B

Heart rate is increased without affecting the cardiac output.

C

Both heart rate and cardiac output increase.

D

Heart rate decreases but cardiac output increases.

Question 182: Palette 182/224

Allen MCQ

Injury localized to the hypothalamus would most likely to disrupt :

A

short - term memory.

B

co-ordination during locomotion.

C

executive functions, such as decision making.

D

regulation of body temperature.

Question 183: Palette 183/224

Allen MCQ

Which of the following regions of the brain is incorrectly paired with its function?

A

Cerebellum- language comprehension

B

Corpus callosum-communication between the left and right cerebral cortex

C

Cerebrum- calculation and contemplation

D

Medulla oblongata - homeostatic control

Question 184: Palette 184/224

Allen MCQ

Myelin sheath is produced by:

A

Astrocytes and Schwann cells

B

Oligodendrocytes and Osteoclasts

C

Osteoclasts and Astrocytes

D

Schwann cells and Oligodendrocytes

Question 185: Palette 185/224

Allen MCQ

Receptor sites for neurotransmitters are present on:

A

Pre-synaptic membrane

B

Tips of axons

C

Post-synaptic membrane

D

Membrane of synaptic vesicles

Question 186: Palette 186/224

Allen MCQ

Which of the following structures or regions is incorrectly paired with its function?

A

Medulla oblongata, Controls respiration and cardiovascular reflexes.

B

Limbic system, Consists of fibre tracts that interconnect different regions of brain; controls movement.

C

Hypothalamus, Production of releasing hormones and regulation of temperature, hunger and thirst.

D

Corpus callosum,Band of fibres connecting left and right cerebral hemispheres.

Question 187: Palette 187/224

Allen MCQ

Which part of the brain is responsible for thermoregulation?

A

Cerebrum

B

Hypothalamus

C

Corpus callosum

D

Medulla oblongata

Question 188: Palette 188/224

Allen MCQ

Which of the following statements is not correct?

A

An action potential in an axon does not move backward because the segment behind is in a refractory phase

B

Depolarisation of hair cells of cochlea
results in the opening of the mechanically
gated potassium -ion channels.

C

Rods are very sensitive and contribute to
daylight vision.

D

In the knee-jerk reflex, stimulus is the
stretching of muscle and response is its
contraction.

Question 189: Palette 189/224

Allen MCQ

Select the incorrect statement regarding synapses: an electrical synapse.

A

Electrical current can flow directly from one neuron into the other across the

B

Chemical synapses use neurotransmitters

C

Impulse transmission across a chemical synapse is always faster than that across an electrical synapse.

D

The membranes of presynaptic and postsynaptic neurons are in close proximity in an electrical synapse.

Question 190: Palette 190/224

Allen Match the Columns

Match Column- I with Column- II

Column-I	Column-II
(A) Multipolar neuron (B) Bipolar neuron (C) Myelinated nerve fibre (D) Unmyelinated nerve fibre	(I) Somatic neural system (II) Cerebral cortex (III) Retina of Eye (IV) Spinal nerves

A

(A) − (III), (B) − (I), (C) − (IV), (D) − (II)

B

(A) − (II), (B) − (IV), (C) − (III), (D) − (I)

C

(A) − (II), (B) − (III), (C) − (I), (D) − (IV)

D

(A) − (II), (B) − (III), (C) − (IV), (D) − (I)

Question 191: Palette 191/224

Allen MCQ

Which system provides an organised network of point to point connection :-

A

Integrated system

B

Neuro-endocrine system

C

Endocrine system

D

Nervous system

Question 192: Palette 192/224

Allen MCQ

Which role of neuron regarding different kinds of stimuli is absent :-

A

detect

B

receive

C

transmit

D

protect

Question 193: Palette 193/224

Allen MCQ

The accompanied diagram shows the structure of neuron. Identify A to E.

A

A-Nerve fibre, B-Cyton or cell body, C-Schwann cell, D-Node of Ranvier, E-Synaptic knob

B

A-Dendrites, B-Cyton or cell body, C-Schwann cell, D-Node of Ranvier, E-Synaptic knob

C

A-Dendrites, B-Nerve cell, C-Schwann cell, D-Node of Ranvier, E-Synaptic knob

D

A-Dendrites, B-Cyton or cell body, C-Nerve cell, D-Node of Ranvier, E-Synaptic knob

Question 194: Palette 194/224

Allen MCQ

When a neuron is not conducting any impulse i.e. resting, the axonal membrane is -

A

Comparatively more permeable to K+ and impermeable (nearly impermeable) to Na⁺

B

Impermeable to negatively charged proteins present in the axoplasm

C

1 & 2 Both

D

More permeable to Na⁺ ions than K⁺ ion

Question 195: Palette 195/224

Allen MCQ

Pick out the incorrect statement?

A

Myelinated nerve fibres are found in spinal and cranial nerve.

B

Unmyelinated nerve fibre is enclosed by a schwann cell.

C

In resting stage the axonal membrane is comparatively more permeable to potassium ion and nearly impermeable to sodium ions.

D

Axolemma is more permeable to negatively charged protein present in the axoplasm.

Question 196: Palette 196/224

Allen MCQ

During depolarization of the neuronal membrane-

A

Na⁺ ions rapidly move inside the cell

B

Na⁺ ions rapidly move outside the cell

C

K⁺ ions rapidly move outside the cell

D

K⁺ ions rapidly move inside the cell

Question 197: Palette 197/224

Allen MCQ

Identify the correct set of statements :
(a) Limbic lobe consists of amygdala and pons.
(b) Cerebral aqueduct passes through the midbrain.
(c) The medulla contains centre which control respiration, cardiovascular reflexes and gastric secretions.
(d) Brain stem forms the connections between the cerebrum and midbrain.
(e) Knee jerk reflex is polysynaptic reflex. Choose the correct answer from options given below :

A

(a) and (d) only

B

(b), (c), (d) and (e) only

C

(a), (b), (d) and (e) only

D

(b) and (c) only

Question 198: Palette 198/224

Allen MCQ

Study the diagram of synapse- I. Which alphabet indicate the location of the receptor molecules ? II. Which alphabet points to a synaptic vesicles III. Which alphabet points to neurotransmitter IV. Which alphabet points to synaptic cleft

A

I-C, II-A, III-B, IV-D

B

I-B, II-A, III-C, IV-D

C

I-C, II-A, III-D, IV-B

D

I-C, II-D, III-A, IV-B

Question 199: Palette 199/224

Allen MCQ

Which of the following statements is false about the electrical synapse ? I. At electrical synapses, the membranes of pre and post synaptic neurons are in very close proximity. II. Electrical current can flow directly from one neuron into the other across the synapses. III. Transmission of an impulse across electrical synapses is very similar to impulse conduction along single axon. IV. Electrical synapses pass electrical signal between cells with the use of Ach V. Electrical synapses are fast. VI. Electrical synapses are rare in our system.

A

I and II

B

Only II

C

Only IV

D

Only V

Question 200: Palette 200/224

Allen MCQ

Identify the correct set of statements :
(a) Myelinated nerve fibres are found in autonomic and the somatic neural systems.
(b) The gaps between two adjacent myelin sheaths are called nodes of Ranvier.
(c) The axonal membrane is impermeable to negatively charged proteins present in the axoplasm.
(d) Electrical synapses are rare in our system.
(e) Synaptic cleft is present in chemical synapse.
Choose the correct answer from options given below :

A

(a) and (d) only

B

(b), (c), (d) and (e) only

C

(a), (b), (d) and (e) only

D

(b) and (c) only

Question 201: Palette 201/224

Allen MCQ

Identify A, B, C and D in given diagram – Right cerebral hemisphere

A

A–Forebrain, B–Brainstem, C–Corpus callosum, D–Cerebral aqueduct

B

A–Forebrain, B–Brainstem, C–Cerebral aqueduct, D–Corpus callosum

C

A–Brainstem, B–Forebrain, C–Corpus callosum, D–Cerebral aqueduct

D

A–Brainstem, B–Forebrain, C–Cerebral aqueduct, D–Corpus luteum

Question 202: Palette 202/224

Allen MCQ

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : Multipolar neurons are found in the cerebral cortex.
Reason (R) : They consists of one axon and two or more dendrites.
In the light of the above statements,
choose the most appropriate answer from the options given below :

A

Both (A) & (R) are correct but (R) is not the correct explanation of (A).

B

(A) is correct but (R) is not correct.

C

(A) is not correct but (R) is correct.

D

Both (A) & (R) are correct and (R) is the correct explanation of (A).

Question 203: Palette 203/224

Allen MCQ

The name of nervous band connecting the cerebral hemispheres is -

A

Corpus albicans

B

Corpus callosum

C

Corpus striatum

D

Corpus spongiosum

Question 204: Palette 204/224

Allen MCQ

Which of the following statements is incorrect about cortex of cerebrum ?

A

It consists of grey matter

B

It consists of white matter

C

It shows prominent folds

D

It contains motor areas, sensory areas and association areas.

Question 205: Palette 205/224

Allen MCQ

Association areas in cerebral cortex are -

A

Sensory areas

B

Motor areas

C

Responsible for intersensory associations, memory and communication

D

None of the above is correct

Question 206: Palette 206/224

Allen MCQ

The cerebrum wraps around a structure called thalamus, which is-

A

A major coordinating centre for sensory signal only

B

A major centre for motor signaling

C

A major coordinating centre for sensory and motor signaling

D

Not a nervous part of a brain

Question 207: Palette 207/224

Allen MCQ

Hypothalamus does not control -

A

Thermoregulation

B

Urge for eating and drinking

C

Produces hormones that regulate the synthesis and secretion of pituitary hormone

D

Creative thinking and consciousness

Question 208: Palette 208/224

Allen MCQ

The inner parts of cerebral hemispheres and a group of associated deep structures like amygdala, hippocampus, etc; form a complex structure called-

A

Recticular system

B

Corpora quadrigemina

C

Limbic lobe/limbic system

D

Arbor vitae

Question 209: Palette 209/224

Allen MCQ

Which of the following statements or structures is not correct about the midbrain ?

A

Located between the thalamus / hypothalamus and pons

B

Has arbor vitae

C

Has a canal (Cerebral aqueduct)

D

Its dorsal part consists of 4 lobes (corpora (4) Its dorsal part consists of 4 lobes (corpora
gemina)

Question 210: Palette 210/224

Allen MCQ

Read the following statements and choose the correct option – I. Cerebellum has very convoluted surface in order to provide the additional space for more neurons. II. The medulla is connected to the spinal cord III. Medulla contains controlling centres for respiration, cardiovascular reflexes and gastric secretion.

A

All are correct

B

Only I is correct

C

Only I and III are correct

D

Only II is correct.

Question 211: Palette 211/224

Allen MCQ

Different components of reflex arc are given below: I. Effector organ II. Interneuron III. Motor neuron IV. Sensory neuron V. Sensory receptor Choose the correct order an action potential follows after a sensory receptor is stimulated-

A

V, IV, III, II, I

B

V, IV, II, III, I

C

V, III, IV, I, II

D

V, II, IV, III, I

Question 212: Palette 212/224

Allen MCQ

Where A stands for axon, D for dendrite, S for synapse, and CB for cell body, a typical sequence of structures between a receptor and an efferent is?

A

D – CB – A – S – D – CB – A

B

A – D – CB – S – A – D – CB

C

D – CB – A – S – A – CB – D

D

D – A – S – CB – D– A – CB

Question 213: Palette 213/224

Allen MCQ

What is meant by a reflex arc in the nervous system?

A

An inherited behaviour pattern, that functions through a certain neural pathway

B

A functional unit consisting of a receptor, neural pathway, and an effector

C

Peripheral nerves, spinal cords and brain

D

A homeostatic system of sensory nerves, synapses and motor nerves

Question 214: Palette 214/224

Allen MCQ

Read the following statements :-
(A) Nervous system provides an organised network of point to point connection.
(B) The endocrine system provides chemical integration through hormone.
(C) The neural organisation is very complex in lower invertebrates.
(D) Neuron can detect & receive stimuli but can't transmit.
How many of above statements are false.

A

4

B

3

C

2

D

1

Question 215: Palette 215/224

Allen MCQ

The following diagrammatic representation of reflex action shows knee jerk reflex. In which of the following options corrects words for all the 5 blanks (A to E) are indicated?

A

A-Dorsal root ganglion, B-White matter, C-Gray matter, D-Afferent pathway, E-Efferent pathway

B

A-Dorsal root ganglion, B-White matter, C-Gray matter, D-Efferent pathway, E-Afferent pathway

C

A-Dorsal root ganglion, B-Gray matter, C-White matter, D-Efferent pathway, E-Afferent pathway

D

A-Ventral root ganglion, B-White matter, C-Gray matter, D-Efferent pathway, E-Afferent pathway

Question 216: Palette 216/224

Allen MCQ

Which of the following answer shows the correct arrangement of nerve fibre.

A

(A)–Centrifugal, (B)–Efferent, (C)–PNS, (D–ANS, (E)–Parasympathetic

B

(A)–Centripetal, (B)–Afferent, (C)–PNS, (D)–ANS, (E) Parasympathetic

C

(A)–Centrifugal, (B)–Afferent, (C)–SNS, (D)–ANS, (E) Parasympathetic

D

(A)–Centripetal, (B)–Efferent, (C)–SNS, (D) ANS, (E)–Parasympathetic

Question 217: Palette 217/224

Allen MCQ

Which statement is correct regarding neuron.

A

Neuron is composed of 4 parts containing cell body dendrite, axon & telodendria

B

Nissl's granules are found in both cell body & axon

C

Impulse are divided into apolar, bipolar & multipolar

D

Dendrites transmit impulse toward the body while axon transmit impulse away from the body

Question 218: Palette 218/224

Allen MCQ

Which of the nervous system transmit impulse from CNS to involuntary organs & smooth muscle ?

A

Sympathetic nervous system

B

Parasympathetic nervous system

C

Autonomic nervous system

D

Somatic nervous system

Question 219: Palette 219/224

Allen MCQ

Read the following statement :- (A) Peripheral nervous system divide's in somatic nervous system & autonomic nervous system. (B) Central nervous system includes brain & vertebral column. (C) Afferent nerve fibre transmit impulse from CNS and vise versa is also correct How many of above statements is/are false

A

A & B

B

B & C

C

C & A

D

All

Question 220: Palette 220/224

Allen MCQ

Which of the following statement is correct. (A) The electrical potential difference across the polarised plasma membrane is called as action potential in resting stage. (B) Na⁺ ion is responsible for generating an action potential. (C) The impulse is action potential

A

A & B

B

B & C

C

C & A

D

All

Question 221: Palette 221/224

Allen MCQ

Which of the statement is false regarding synapse?

A

Synapse is formed by 2 membrane first presynaptic membrane of synaptic knob & second post synaptic membrane of dendrite.

B

Synaptic membrane always be separated by a gap called synaptic cleft.

C

Electrical synapse in very similar to impulse conduction along a single axon.

D

In chemical synapse, neurotransmitter is released and either excitatory or inhibitory potential is generated on post synaptic membrane.

Question 222: Palette 222/224

Allen MCQ

Na⁺ - K⁺ pump – (A) Transports 3Na⁺ inwards & 2K⁺ outwards. (B) Maintain ionic gradients by active transport. (C) Works against a concentration gradient. How many of above statements are false?

A

All are correct

B

3

C

2

D

1

Question 223: Palette 223/224

Allen MCQ

Which of the following are controlled by limbic system:-
(A) Emotional reaction
(B) Sexual behaviour
(C) Respiration
(D) Olfaction
(E) Body balance
Choose the correct option –

A

A, B, C, D, E

B

A, B, D

C

A, B, C, D

D

A, B, D, E

Question 224: Palette 224/224

Allen MCQ

The prime area of brain where different type of information are integrated –

A

CNS

B

ANS

C

PNS

D

SNS