What is the function of the sensory nerve in a reflex arc?
Answer and explanation
Correct answer: To carry message from receptor to spinal cord
The governing concept is the pathway of a reflex arc. A receptor first detects a stimulus such as heat or pain and produces a nerve impulse. The sensory nerve, also called an afferent nerve, carries this impulse from the receptor to the spinal cord, where the response is coordinated. Therefore option A is correct. Motor nerves carry commands toward effectors; they do not carry the initial receptor message to the spinal cord.
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What is the correct answer to this question?
To carry message from receptor to spinal cord
Why is this the correct answer?
The governing concept is the pathway of a reflex arc. A receptor first detects a stimulus such as heat or pain and produces a nerve impulse. The sensory nerve, also called an afferent nerve, carries this impulse from the receptor to the spinal cord, where the response is coordinated. Therefore option A is correct. Motor nerves carry commands toward effectors; they do not carry the initial receptor message to the spinal cord.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Control and Coordination. Topic: Reflex action.
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