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Neural Control And Coordination

460 Questions Start Allen Test
All Exams Allen Errorless
DUMET 2009 Q51 Errorless Human nervous system MCQ
Skeletal muscles are controlled by
A.
Sympathetic nerves
B.
Parasympathetic nerves
C.
Somatic nerves
D.
Autonomic nerves
MP PMT 2009 Q52 Errorless Human nervous system MCQ
Which foramen is paired in mammalian brain
A.
Foramen of Luschka
B.
Foramen of Magendie
C.
Foramen of Monro (d)Inter-ventricular foramen
MP PMT 2009 Q53 Errorless Human nervous system MCQ
Which is thickened to form organ of Corti
A.
Reissner's membrane
B.
Basilar membrane
C.
Tectorial membrane
D.
All of the above
WB JEE 2009 Q54 Errorless Human nervous system MCQ
Which part of the human brain is largest
A.
Cerebellum
B.
Thalamus
C.
Cerebrum
D.
Medulla
AMU (Med.) 2009 Q55 Errorless Generation and Conduction of Nerve Impulse MCQ
Myelin of the nerve fibres of the central nervous system is produced and maintained by
A.
Schwann cell and Oligodendrocytes
B.
Astrocytes and Schwann cells
C.
Oligodendrocytes and Osteoclasts
D.
Osteoclasts and Astrocytes
DUMET 2009 Q56 Errorless Generation and Conduction of Nerve Impulse MCQ
The cutaneous plexus and the papillary plexus consist of
A.
A network of nerves to provide dermal sensation
B.
A network of arteries to provide dermal supply
C.
Specialized cells for cutaneous sensations
D.
Gland cells that release cutaneous secretions
EAMCET 2009 Q57 Errorless Generation and Conduction of Nerve Impulse MCQ
Identify the region where all Na+ channels are reactivated but closed and all K+ channels are closed
A.
D
B.
C
C.
B
D.
A
Kerala PMT 2009 Q58 Errorless Generation and Conduction of Nerve Impulse MCQ
In a cross section of the spinal cord A, B, C, D and E represents
A.
A - white matter, B - grey matter, C - dorsal root, D ā€“ ventral root, E - spinal nerve
B.
A ā€“ white matter, B ā€“ grey matter, C - ventral root, D - dorsal root, E - spinal nerve
C.
A - grey matter, B ā€“ white matter, C ā€“ ventral root D - dorsal root, E - spinal nerve
D.
A - grey matter, B ā€“ white matter, C ā€“ dorsal root, D - ventral root, E - spinal nerve
E.
A ā€“ white matter, B ā€“ grey matter, C - spinal nerve, D - ventral root, E - dorsal root
AMU (Med.) 2009 Q59 Errorless Generation and Conduction of Nerve Impulse MCQ
All sensory pathways to the cerebral cortex synapse at the
A.
Pons
B.
Hypothalamus
C.
Thalamus
D.
Cerebellum
AMU (Med.) 2009 Q60 Errorless Critical Thinking MCQ
Which is a characteristic of a graded potential
A.
The amplitude is always the same
B.
The duration varies
C.
Always followed by a refractory period
D.
Is an all or none response
AIIMS 2009 Q61 Errorless Self Evaluation Test MCQ
In the central nervous system myelinated fibres form the ..., while the non-myelinated fibre cells form the....
A.
Grey matter; white matter
B.
White matter; grey matter
C.
Ependymal cells; neurosecretory cells
D.
Neurosecretory cells; ependymal cells
Kerala PMT 2008 Q62 Errorless Human nervous system MCQ
In a myelinated neuron, two adjacent myelin sheaths are separated by gaps called
A.
Nodes of Ranvier
B.
Synaptic cleft
C.
Schwann cells
D.
Synaptic knob
E.
Neural plate
WB JEE 2008 Q63 Errorless Human nervous system MCQ
Broca's area is situated in
A.
Frontal lobe
B.
Parietal lobe
C.
Temporal lobe
D.
Occipital lobe
AIIMS 2008, 13 Q64 Errorless Generation and Conduction of Nerve Impulse MCQ
Given below is a table comparing the effects of sympathetic and parasympathetic nervous system for four features (a-d). Which one feature is correctly described
A.
Feature ā€“ Salivary gland, Sympathetic ā€“ Stimulates secretion, Parasympathetic ā€“ Inhibits secretion
B.
Feature ā€“ Pupil of the eye, Sympathetic ā€“ Dilates, Parasympathetic ā€“ Constricts
C.
Feature ā€“ Heart rate, Sympathetic ā€“ Decreases, Parasympathetic ā€“ Increases
D.
Feature ā€“ Intestinal peristalsis, Sympathetic ā€“ Stimulates, Parasympathetic ā€“ Inhibits
CBSE PMT 2008 Q65 Errorless Generation and Conduction of Nerve Impulse 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 intracellular fluid
D.
Na+ ions from intracellular fluid to extracellular fluid
Kerala PMT 2008; AlIMS 2009 Q66 Errorless Generation and Conduction of Nerve Impulse MCQ
The potential maintained across the neuron membrane during the resting state is
A.
+ 70 mV
B.
- 70 mV
C.
0.5 V
D.
- 30 mV
E.
+ 30 mV
AFMC 2008 Q67 Errorless Self Evaluation Test MCQ
Which kind of waves are generated in brain during deep sleep
A.
Alpha wave
B.
Beta wave
C.
Delta wave
D.
Theta wave
DPMT 2007 Q68 Errorless Human nervous system MCQ
The correct sequence of meninges from outer to the inner side is
A.
Arachnoid ā€“ piamater ā€“ duramater
B.
Arachnoid ā€“ duramater - piamater
C.
Piamater ā€“ arachnoid ā€“ duramater
D.
Duramater ā€“ arachnoid ā€“ piamater
CBSE PMT 2007 Q69 Errorless Human nervous system MCQ
Which one of the following pairs of structures distinguishes a nerve cell from other types of cell
A.
Perikaryon and dendrites
B.
Vacuoles and fibres
C.
Flagellum and medullary sheath
D.
Nucleus and mitochondria
CBSE PMT 2007 Q70 Errorless Generation and Conduction of Nerve Impulse MCQ
During transmission of nerve impulse the potential inside membrane has the following type of charge
A.
First positive, then negative and back positive
B.
First negative then positive and back negative
C.
First positive then negative and remain negative
D.
First negative then positive and remain positive
GUJCET 2007; DPMT 2007 Q71 Errorless Generation and Conduction of Nerve Impulse MCQ
These processes occurs during repolarization of nerve fibre
(i) Open Na+ channel
(ii) Closed Na+ channel
(iii) Closed K+ channel
(iv) Open K+ channel
A.
ii and iv
B.
i and iii
C.
ii and iii
D.
i and ii
DPMT 2007 Q72 Errorless Generation and Conduction of Nerve Impulse MCQ
Synaptic vesicle is found in
A.
Pre-synaptic neuron
B.
Post synaptic neuron
C.
Synaptic left
D.
None of these
AIIMs 2007 Q73 Errorless Critical Thinking MCQ
An action potential in the nerve fibre is produced when positive and negative charges on the outside and the inside of the axon membrane are reversed, because
A.
More potassium ions enter the axon as compared to sodium ions leaving it
B.
More sodium ions enter the axon as compared to potassium ions leaving it
C.
All potassium ions leave the axon
D.
All sodium ions enter the axon
DPMT 2006 Q74 Errorless Human nervous system MCQ
Post-ganglionic nerve fibres of sympathetic system are
A.
Adrenergic
B.
Cholinergic
C.
Both a and b
D.
None of these
DPMT 2006 Q75 Errorless Human nervous system MCQ
The supporting and nutritive cells found in the brain are Or Ventricles of brain are lined by the cells called [MP PMT 1997]
A.
Ependymal cells
B.
Microglia
C.
Astrocytes
D.
Oligodendrocytes