MCQs on Nervous System For NEET 2020

Neurons are held in a complex network detailed to perform dedicated functions carrying messages comprising the neural or the nervous system. Higher animals possess the most complex nervous system. In the animal kingdom, Brain is the most complicated structures possessing billions of neurons. The nervous system consolidates, syncs the activities of the organs on the basis of stimuli that the neurons identify and pass.

1. The falx cerebri developing from the durometer is present between

(a) brain and spinal cord

(b) cerebellar hemispheres

(c) cerebral hemispheres

(d) subdural and epidural space

Answer: (c)

2. This is the correct order of meninges from the other to the inner side

(a) Piameter – archnoidmater – durometer

(b) Pericardium – myocardium – endocardium

(c) durometer – piamater – archnoidmater

(d) durometer – archnoidmater – piameter

Answer: (d)

3. The space which separates archnoidmater and durometer is

(a) epidural

(b) mediastinum

(c) subdural

(d) subarachnoid

Answer: (c)

4. Neurons are aided by following glial cells except for this

(a) ependymal

(b) lymphocytes

(c) oligodendrocytes

(d) astrocytes

Answer: (b)

5. This structure at a synapse has the neurotransmitter

(a) schwan cells

(b) synaptic cleft

(c) synaptic knobs

(d) synaptic vesicles

Answer: (d)

6. The action potential while the propagation of a nerve impulse is due to the movement of

(a) K+ ions from intracellular to extracellular fluid

(b) K+ ions from extracellular to intracellular fluid

(c) Na+ ions from intracellular to extracellular fluid

(d) Na+ ions from extracellular to intracellular fluid

Answer: (d)

7. In the left hemisphere, Broca’s area is related to

(a) speech

(b) smell sensation

(c) impulses received from eyes

(d) reasoning and learning

Answer: (a)

8. As a stimulant of the CNS, cocaine interferes with the reuptake of _________ at synapses

(a) Epinephrine

(b) dopamine

(c) acetylcholine

(d) oxygen

Answer: (b)

9. The synaptic vesicles a neuromuscular junction discharges

(a) adrenaline

(b) epinephrine

(c) acetylcholine

(d) none of the above

Answer: (c)

10. ______________ is the ability of neurons to initiate nerve impulses

(a) myelination

(b) conductivity

(c) irritability

(d) neurotranmission

Answer: (c)

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