Which type of change is a nerve impulse?

C. Electrical and chemical change

Everyday Science · Body Systems (Human Biology) · page 2 of 21

Nervous System MCQs with Answers

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Nervous System MCQs (11–20)

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Past paper MCQs in this chapter · See all past papers

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11.
The brain is covered by three layers of membranes inside the cranium called as _?
Correct Answer: A. Meninges
One-liner
The brain is covered by three layers of protective membranes called meninges.
12.
In a vertebrate, a reflex action is induced by?
Correct Answer: C. Sensory nerve
One-liner
In a vertebrate, a reflex action is induced by the sensory nerve, which carries the stimulus from the receptor to the spinal cord.
13.
The nervous system of vertebrate has _ main divisions.
Correct Answer: C. 2
One-liner
The nervous system of vertebrates has 2 main divisions: the Central Nervous System (CNS) and the Peripheral Nervous System (PNS).
14.
During repolarization of a neuron, which ion exits the cell?
Correct Answer: B. K⁺
One-liner
During repolarization of a neuron, K⁺ (potassium ions) exit the cell.
15.
The smallest part of the brain is _?
Correct Answer: B. Midbrain
One-liner
The smallest part of the brain is the midbrain, which measures approximately 1.5 cm in length.
16.
Which part of the brain is responsible for temperature regulation?
Correct Answer: B. Hypothalamus
One-liner
The hypothalamus is the part of the brain responsible for temperature regulation and maintaining homeostasis.
17.
Which of the following is the main part of the human brain?
Correct Answer: D. All of these
One-liner
The main parts of the human brain include the cerebrum, cerebellum, and brainstem — so All of these is correct.
18.
Which is the largest part of the brain and comprises two hemispheres?
Correct Answer: D. Forebrain
One-liner
The forebrain (cerebrum) is the largest part of the brain, consisting of two cerebral hemispheres.
19.
Which ions are involved in synaptic transmission?
Correct Answer: D. Na⁺, K⁺, Ca²⁺
One-liner
The ions involved in synaptic transmission are Na⁺, K⁺, and Ca²⁺.
20.
Which type of change is a nerve impulse?
Correct Answer: C. Electrical and chemical change
One-liner
A nerve impulse is an electrical and chemical change that travels along the neuron.

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Nervous System MCQs with Answers

Nervous System MCQs (11–20)

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