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If skin receptors are active but the message is not reaching the spinal cord, which part of the reflex arc is most likely affected?

Answer and explanation

Correct answer: Sensory nerve

In a reflex arc, the receptor detects the stimulus and the sensory nerve carries the impulse from the skin towards the spinal cord. Since the receptors are already active but the message fails before reaching the spinal cord, the sensory nerve is the most likely damaged part. A motor nerve carries commands away from the spinal cord, the muscle performs the response, and the thyroid is unrelated here.

Related tags

Reflex ArcSensory NerveNervous SystemReflex ActionControl And CoordinationScienceClass 10 Mcq

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