Neural Control and Coordination( Neuron and Nerves; Nervous System in Humans Central Nervous System,...) NEET Questions

Biology - Human Physiology

Neural Control and Coordination( Neuron and Nerves; Nervous System in Humans Central Nervous System,...) MCQ Questions


13.
Which cells are responsible for producing cerebrospinal fluid (CSF)?
A.
Astrocytes
B.
Ependymal cells
C.
Microglia
D.
Oligodendrocytes
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ANSWER :
B. Ependymal cells
14.
The cranial nerve responsible for vision is:
A.
Optic nerve (II)
B.
Optic nerve (II)
C.
Oculomotor nerve (III)
D.
Trochlear nerve (IV)
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ANSWER :
B. Optic nerve (II)
15.

Which ion is primarily responsible for the depolarization phase of an action potential in neurons?

NEET - 2017

A.

Potassium (K⁺)

B.

Sodium (Na⁺)

C.

Calcium (Ca²⁺)

D.

Chloride (Cl⁻)

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ANSWER :

B. Sodium (Na⁺)

16.
Which part of the neuron conducts impulses away from the cell body?
A.
Dendrite
B.
Axon
C.
Soma
D.
Nissl body
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ANSWER :
B. Axon
17.
The area of the brain responsible for speech production is known as:
A.
Wernicke's area
B.
Broca's area
C.
Angular gyrus
D.
Primary auditory cortex
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ANSWER :
B. Broca's area
18.
Which ion channel is primarily responsible for the repolarization phase of an action potential?
A.
Potassium (K⁺) channels
B.
Sodium (Na⁺) channels
C.
Calcium (Ca²⁺) channels
D.
Chloride (Cl⁻) channels
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ANSWER :
A. Potassium (K⁺) channels