Question 1: Palette 1/59

NEET 2026 MCQ

The specific receptors for neurotransmitters in a synapse are present on $\_\_\_\_$ .

A

Schwann cell

B

Pre-synaptic membrane

C

Myelin sheath

D

Post-synaptic membrane

Question 2: Palette 2/59

NEET 2026 MCQ

Which of the following is not a part of human central neural system?

A

Pericardium

B

Arachnoid

C

Dura mater

D

Pia mater

Question 3: Palette 3/59

NEET 2024 MCQ

Match List-I with List -II

	List - I		List - II
(A)	Schwann cells	(I)	Neurotransmitter
(B)	Synaptic knob	(II)	Cerebral cortex
(C)	Bipolar neurons	(III)	Myelin sheath
(D)	Multipolar neurons	(IV)	Retina

Choose the correct answer from the options given below:

A

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

B

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

C

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

D

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

Question 4: Palette 4/59

NEET 2024 MCQ

Match List I with List II:

	List - I		List - II
A.	Pons	I.	Provides additional space for Neurons, regulates posture and balance.
B.	Hypothalamus	II.	Controls respiration and gastric secretions.
C.	Medulla	III.	Connects different regions of the brain.
D.	Cerebellum	IV.	Neuro secretory cells

Choose the correct answer from the options given below :

A

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

B

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

C

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

D

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

Question 5: Palette 5/59

NEET 2024 MCQ

Given below are two statements:

Statement I: The cerebral hemispheres are connected by nerve tract known as corpus callosum.

Statement II: The brain stem consists of the medulla oblongata, pons and cerebrum.

In the light of the above statements, choose the most appropriate answer from the options given below:

A

Both Statement I and Statement II are correct.

B

Both Statement I and Statement II are incorrect.

C

Statement I is correct but Statement II is incorrect.

D

Statement I is incorrect but Statement II is correct.

Question 6: Palette 6/59

NEET 2023 MCQ

Given below are two statements :

Statement I :- The nose contains mucus – coated receptors which are specialised for receiving the sense of smell and are called olfactory receptors.

Statement II :- Wall of the eye ball has three layers. The external layer is called choroid (dense connective tissue), middle layer is sclera (thin pigmented layer) and internal layer is retina (ganglion cells, bipolar cells and photoreceptor cells).

In the light of the above statements, choose the correct answer from the options given below:

A

Statement I is true but statement II is false

B

Statement I is false but Statement II is true

C

Both Statement I and Statement II are true

D

Both Statement I and Statement II are false.

Question 7: Palette 7/59

NEET 2023 MCQ

Brainstem of human brain consists of :

A

Mid-brain, Pons and Medulla Oblongata

B

Forebrain, Cerebellum and Pons

C

Thalamus, Hypothalamus and Corpora quadrigemina

D

Amygdala, Hippocampus and Corpus Callosum

Question 8: Palette 8/59

NEET 2023 MCQ

Match List I with List II with respect to human eye.

	List I		List II
(A)	Fovea	(I)	Visible coloured portion of eye that regulates diameter of pupil.
(B)	Iris	(II)	External layer of eye formed of dense connective tissue.
(C)	Blind spot	(III)	Point of greatest visual acuity or resolution.
(D)	Sclera	(IV)	Point where optic nerve leaves the eyeball and photoreceptor cells are absent.

Choose the correct answer from the options given below:

A

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

B

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

C

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

D

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

Question 9: Palette 9/59

NEET 2023 MCQ

The parts of human brain that helps in regulation of sexual behaviour, expression of excitement, pleasure, rage, fear etc. are:

A

Corpora quadrigemina and hippocampus

B

Brain stem and epithalamus

C

Corpus callosum and thalamus

D

Limbic system and hypothalamus

Question 10: Palette 10/59

NEET 2022 MCQ

Match List-I with List - II :

	List - I		List - II
(a)	Multipolar neuron	(i)	Somatic neural system
(b)	Bipolar neuron	(ii)	Cerebral cortex
(c)	Myelinated nerve fibre	(iii)	Retina of Eye
(d)	Unmyelinated nerve fibre	(iv)	Spinal nerves

Choose the correct answer from the options given below :

A

(a) - (ii), (b) - (iii), (c) - (iv), (d) - (i)

B

(a) - (iii), (b) - (i), (c) - (iv), (d) - (ii)

C

(a) - (ii), (b) - (iv), (c) - (iii), (d) - (i)

D

(a) - (ii), (b) - (iii), (c) - (i), (d) - (iv)

Question 11: Palette 11/59

NEET 2022 MCQ

Select the incorrect statement regarding synapses :

A

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

B

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

C

Chemical synapses use neurotransmitters

D

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

Question 12: Palette 12/59

NEET 2020 MCQ

Match the following columns and select the correct option.

Column-I	Column-II
(a) Organ of Corti	(i) Connects middle ear and pharynx
(b) Cochlea	(ii) Coiled part of the labyrinth
(c) Eustachian tube	(iii) Attached to the oval window
(d) Stapes	(iv) Located on the basilar membrane

A

(A) $ \to $ (ii), (B) $ \to $ (iii), (C) $ \to $ (i), (D) $ \to $ (iv)

B

(A) $ \to $ (iv), (B) $ \to $ (ii), (C) $ \to $ (i), (D) $ \to $ (iii)

C

(A) $ \to $ (iii), (B) $ \to $ (i), (C) $ \to $ (iv), (D) $ \to $ (ii)

D

(A) $ \to $ (i), (B) $ \to $ (ii), (C) $ \to $ (iv), (D) $ \to $ (iii)

Question 13: Palette 13/59

NEET 2019 MCQ

Which part of the brain is responsible for thermoregulation?

A

Corpus callosum

B

Medulla oblongata

C

Cerebrum

D

Hypothalamus

Question 14: Palette 14/59

NEET 2019 MCQ

Which of the following statements in correct?

A

Cornea is convex, transparent layer which is highly vascularised

B

Cornea consists of dense matrix of collagen and is the most sensitive portion of the eye.

C

Cornea is an external, Transparent and protective proteinacious covering of the eye-ball

D

Cornea consists of dense connective tissue of elastin and can repair itself.

Question 15: Palette 15/59

NEET 2018 MCQ

The transparent lens in the human eye is held in its place by

A

smooth muscles attached to the ciliary body.

B

ligaments attached to the ciliary body

C

ligaments attached to the iris

D

smooth muscles attached to the iris

Question 16: Palette 16/59

NEET 2018 MCQ

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

A

Medulla oblongata : Controls respiration and cardiovascular reflexes

B

Corpus callosum : Band of fibers connecting left and right cerebral hemispheres

C

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

D

Limbic system : Consists of fibre tracts that interconnect different regions of brain controlsmovement

Question 17: Palette 17/59

NEET 2018 MCQ

Nissl’s bodies are mainly composed of

A

free ribosomes and RER

B

proteins and lipids

C

DNA and RNA

D

nucleic acids and SER

Question 18: Palette 18/59

NEET 2017 MCQ

Receptor sites for neurotransmitters are present on

A

pre-synaptic membrane

B

tips of axons

C

post-synaptic membrane

D

membranees of synaptic vesicles.

Question 19: Palette 19/59

NEET 2017 MCQ

Myelin sheath is produced by

A

astrocytes and Schwann cell

B

oligodendrocytes and osteoclasts

C

osteoclasts and astrocytes

D

Schwann cells and oligodendrocytes.

Question 20: Palette 20/59

NEET 2017 MCQ

Good vishion depends on adequate intake of carotene rich food.

Select the best option from the following statements.
(1)  Vitamins A derivatives are formed from carotene,
(2)  The photopigments are embedded in the membrane discs of the inner segment.
(3)  Retinal is a derivative of vitamin A.
(4)  Retinal is a light absorbing part of all the visual photopigments.

A

(1), (3) and (4)

B

(1) and (3)

C

(2), (3) and (4)

D

(1) and (2)

Question 21: Palette 21/59

NEET 2016 MCQ

Choose the correct statement.

A

Nociceptors respond to changes in pressure.

B

Meissner's corpuscles are thermoreceptors.

C

Photoreceptors in the human eye are depolarised during darkness and become hyperpolaized in response to the light stimulus.

D

Receptors do not produce graded potentials.

Question 22: Palette 22/59

NEET 2016 MCQ

Photosensitive compound in human eye is made up of

A

opsin and retinol

B

transducin and retinene

C

guanosine and retinol

D

opsin and retinal.

Question 23: Palette 23/59

NEET 2015 MCQ

In mammalian eye, the 'fovea' is the center of the visual field, where

A

only rods are present

B

more rods than cones are found

C

high density of cones occur, but has no rods

D

the optic nerve leaves the eye.

Question 24: Palette 24/59

NEET 2015 MCQ

Destruction of the anterior horn cells of the spinal cord would result in loss of

A

commissural impulses

B

integrating impulses

C

sensory impulses

D

voluntary motor impulses.

Question 25: Palette 25/59

NEET 2015 MCQ

A gymnast is able to balance his body upside down even in the total darkness because of

A

tectorial membrane

B

organ of corti

C

cochlea

D

vestibular apparatus.

Question 26: Palette 26/59

NEET 2015 MCQ

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

A

Corpus callosum - communication between the left and right cerebral cortices

B

Cerebrum - calculation and contemplation

C

Medulla oblongata - homeostatic control

D

Cerebellum - language comprehension

Question 27: Palette 27/59

NEET 2014 MCQ

Injury localized to the hypothalamus would most likely disrupt

A

short - term memory

B

co-ordination during locomotion

C

executive functions, such as decision making

D

regulation of body temperature.

Question 28: Palette 28/59

NEET 2014 MCQ

Which one of the following statements is not correct?

A

Retinal is the light absorbing portion of visual photo pigments.

B

In retina the rods have the photopigment rhodopsin while cones have three different photopigments.

C

Retinal is a derivative of vitamin C.

D

Rhodopsin is the purplish red protein present in rods only.

Question 29: Palette 29/59

NEET 2013 MCQ

A sagittal section of human brain is shown here. Identify at least two labels from A-D.

A

A-Cerebral hemispheres, B-Cerebellum

B

B-Corpus callosum, D-Medulla

C

C-Mid brain, D-Cerebellum

D

A-Cerebrum, C-Pons

Question 30: Palette 30/59

NEET 2013 MCQ

The figure shows an axon terminal and synapse. Select the option giving correct identification of labels A-D.

A

C-Receptor, D-Synaptic vesicles

B

A-Axon terminal, B- Serotonin complex

C

A-Action potential, C-Neurotransmitter

D

B-Neurotransmitter, D- Receptor capsules

Question 31: Palette 31/59

NEET 2013 MCQ

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

A

A - Receptor, C - Synaptic vesicles

B

A - Neurotransmitter, B - Synaptic cleft

C

C - Neurotransmitter, D - Ca⁺⁺

D

B - Synaptic connection, D - K⁺

Question 32: Palette 32/59

NEET 2013 MCQ

Parts A, B, C and D of the human eye are shown in the diagram. Select the option which gives correct identification along with its functions/ characteristics.

A

B - Blind spot-Has only a few rods and cones.

B

A - Retina - Contains photoreceptors, i.e., rods and cones.

C

C-Aqueous chamber-Reflects the light which does not pass through the lens.

D

D - Choroid - Its anterior part forms ciliary body.

Question 33: Palette 33/59

NEET 2013 MCQ

The most abundant intracellular cation is

A

H⁺

B

K⁺

C

Na⁺

D

Ca⁺⁺.

Question 34: Palette 34/59

NEET 2012 MCQ

Which part of the human ear plays no role in hearing as such but is otherwise very much required?

A

Eustachian tube

B

Organ of Corti

C

Vestibular apparatus

D

Ear ossicles

Question 35: Palette 35/59

NEET 2012 MCQ

The human hind brain comprises three parts, one of which is

A

spinal cord

B

corpus callosum

C

cerebellum

D

hypothalamus.

Question 36: Palette 36/59

NEET 2011 MCQ

The purplish red pigment rhodopsin contained in the rods type of photoreceptor cells of the human eye, is a derivative of

A

vitamin B₁

B

vitamin C

C

vitamin D

D

vitamin A.

Question 37: Palette 37/59

NEET 2011 MCQ

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

A

comparatively more permeable to Na⁺ ions and nearly impermeable to K⁺ ions

B

equally permeable to both Na⁺ and K⁺ ions

C

impermeable to both Na⁺ and K⁺ ions

D

comparatively more permeable to K⁺ ions and nearly impermeable to Na⁺ ions.

Question 38: Palette 38/59

NEET 2010 MCQ

Select the answer with correct matching of the structure, its location and function.

A

Structure	Location	Function
Eustachian tube	Anteriror part of internal ear	Equalizes air pressure on either sides of tympanic membrane

B

Structure	Location	Function
Cerebellum	Mid Brain	Controls respiration and gastric secretions

C

Structure	Location	Function
Hypothalamus	Fore Brain	Controls body temperature, urge for eating and drinking

D

Structure	Location	Function
Blind spot	Near the place where optic nerve leaves the eye	Rods and cones are present but inactive here

Question 39: Palette 39/59

NEET 2010 MCQ

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

A

hypothalamus

B

pons

C

cerebellum

D

thalamus.

Question 40: Palette 40/59

NEET 2009 MCQ

Alzheimer's disease in humans is associated with the deficiency of

A

glutamic acid

B

acetylcholine

C

gamma aminobutyric acid (GABA)

D

dopamine.

Question 41: Palette 41/59

NEET 2009 MCQ

Which part of human brain is concerned with the regulation of body temperature?

A

Cerebellum

B

Cerebrum

C

Hypothalamus

D

Medulla oblongata

Question 42: Palette 42/59

NEET 2008 MCQ

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

A

K⁺ ions from intracellular fluid to extracellular fluid

B

Na⁺ ions from extracellular fluid to intracellular fluid

C

K⁺ ions from extracellular fluid to extracellular fluid

D

Na⁺ ions from intracellular fluid to extracellular fluid.

Question 43: Palette 43/59

NEET 2008 MCQ

Cornea transplant in humans is almost never rejected. This is because

A

it is composed of enucleated cells

B

it is a non-living layer

C

its cells are least penetrable by bacteria

D

it has no blood supply.

Question 44: Palette 44/59

NEET 2008 MCQ

Which one of the following is the correct difference between rod cells and cone cells of our retina?

A

	Rod cells	Cone cells
Overall function	Vision in poor light	Colour vision and detailed vision in bright light

B

	Rod cells	Cone cells
Distribution	More concentrated in centre of retina	Evenly distributed all over ratina

C

	Rod cells	Cone cells
Visual acuity	High	Low

D

	Rod cells	Cone cells
Visual pigment contained	Iodopsion	Rhodopsin

Question 45: Palette 45/59

NEET 2008 MCQ

Given below is a diagrammatic cross section of a single loop of human cochlea. Which one of the following options correctly represents the names of three different parts?

A

B : Tectorial membrane, C : Perilymph, D: secretory cells

B

A : Perilymph, B : Tectorial membrane, C: Endolymph

C

C : Endolymph, D : Sensory hair cells, A : Serum

D

D : Sensory hair cells, A : Endolymph B : Tectorial membrane.

Question 46: Palette 46/59

NEET 2007 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 change?

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 47: Palette 47/59

NEET 2007 MCQ

Bowman's glands are located in the

A

Anterior pituitary

B

Female reproductive system of cockroach

C

Olfactory epithelium of our nose

D

Proximal end of uriniferous tubules.

Question 48: Palette 48/59

NEET 2006 MCQ

Bowman's glands are found in

A

juxtamedullary nephrons

B

Olfactory epithelium

C

external auditory canal

D

cortical nephrons only

Question 49: Palette 49/59

NEET 2006 MCQ

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

A

Cortisone

B

Acetylcholine

C

Epinephrine

D

Norepinephrine

Question 50: Palette 50/59

NEET 2005 MCQ

Parkinson's disease (characterized by tremors and progressive rigidity of limbs) is caused by degeneration of brain neurons that are involved in movement control and make use of neurotransmitter

A

acetylcholine

B

norepinephrine

C

dopamine

D

norepinephrine

Question 51: Palette 51/59

NEET 2005 MCQ

Which one of the following is the example of the action of the autonomous nervous system?

A

Swallowing of food

B

Pupillary reflex

C

Peristalsis of the intestine

D

Knee-jerk response

Question 52: Palette 52/59

NEET 2005 MCQ

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

A

Movement of the eyeball

B

Movement of the tongue

C

Swallowing

D

Movement of the neck

Question 53: Palette 53/59

NEET 2004 MCQ

Injury to vagus nerve in humans is not likely to affect

A

tongue movements

B

gastrointestinal movements

C

pancreatic secretion

D

cardiac movements.

Question 54: Palette 54/59

NEET 2004 MCQ

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

A

K⁺ into the cell

B

K⁺ and Na⁺ out of the cell

C

Na⁺ into the cell

D

Na⁺ out of the cell.

Question 55: Palette 55/59

NEET 2003 MCQ

What used to be described as Nissl's granules in a nerve cell are now identified as

A

cell metabolites

B

fat granules

C

ribosomes

D

mitochondria.

Question 56: Palette 56/59

NEET 2002 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 and myelin sheath are discontinuous

D

Covered by myelin sheath

Question 57: Palette 57/59

NEET 2001 MCQ

When we migrate from dark to light, we fail to see for sometime but after a time visibility becomes normal. It is example of

A

accomodation

B

adaptation

C

mutation

D

photoperiodism.

Question 58: Palette 58/59

NEET 2001 MCQ

Which of the following statements is the characteristics of human cornea?

A

It is secreted by conjuctiva and glandular layer.

B

It is a lacrimal gland which secrete tears.

C

Blood circulation is absent in cornea.

D

In old age it becomes the cause of cataract.

Question 59: Palette 59/59

NEET 2000 MCQ

Depolarization of axolema during nerve conduction takes place because of

A

equal amount of Na⁺ and K⁺ move out across axolema

B

Na ⁺ move inside and K⁺ move more outside.

C

more Na⁺ outside

D

none of these