The cells transmit impulses from the ?

A. Receptor cells to the spinal cord cells

B. Spinal cord cells to the receptor cells

C. Brain cells to the effector cells

D. Effector cells to the brain cells

Everyday Science · Body Systems (Human Biology) · page 10 of 21

Nervous System MCQs with Answers

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Nervous System MCQs (91–100)

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Past paper MCQs in this chapter · See all past papers

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91.
The length of the spinal cord of the human being is ?
Correct Answer: C. 16 to 18 inches
One-liner
The length of the spinal cord in an adult human being is approximately 16 to 18 inches (about 40 to 45 cm).
92.
Which part of the brain contains central chemoreceptors that monitor CO₂ levels in blood?
Correct Answer: D. Medulla oblongata
One-liner
The medulla oblongata contains central chemoreceptors that monitor CO₂ levels in the blood and regulate breathing accordingly.
93.
During non-conducting state, the neuron membrane is permeable to efflux of ?
Correct Answer: B. K⁺
One-liner
During the non-conducting (resting) state, the neuron membrane is highly permeable to the efflux of K⁺ (potassium ions).
94.
Reflex action in the body is controlled by ?
Correct Answer: C. Spinal cord
One-liner
Reflex action in the body is controlled by the spinal cord.
95.
A headache is not a pain in your brain but most headaches happen in the?
Correct Answer: A. Nerves
One-liner
Most headaches occur in the nerves, blood vessels, and muscles surrounding the head and neck, not in the brain tissue itself.
96.
Which system in the human body is responsible for transmitting signals between different parts of the body?
Correct Answer: B. Nervous system
One-liner
The nervous system is responsible for transmitting signals between different parts of the body.
97.
The cells transmit impulses from the ?
Correct Answer: A. Receptor cells to the spinal cord cells
One-liner
The cells transmit impulses from the receptor cells to the spinal cord cells.
98.
Which of the following cannot be transplanted?
Correct Answer: C. Brain
One-liner
The brain cannot be transplanted because it is the seat of consciousness, personality, and identity, and its neural connections cannot be surgically reconnected.
99.
The bio-rhythms showing periodicity of 24 hours are called ?
Correct Answer: A. Circadian
One-liner
Bio-rhythms that repeat approximately every 24 hours are called Circadian rhythms (from Latin "circa" = about, "diem" = day).
100.
_ neurons in type 1 male fish fires at higher percentage as compared to type 2 male fish in midshipman.
Correct Answer: A. Pacemaker
One-liner
Pacemaker neurons in type 1 male midshipman fish fire at a higher percentage compared to type 2 males, driving their distinct vocal courtship behavior.

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Nervous System MCQs with Answers

Nervous System MCQs (91–100)

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