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What will happen to reflex action if the sensory nerve is damaged?

Answer and explanation

Correct answer: Information about the stimulus will not properly reach the spinal cord

A reflex arc depends on a complete pathway: receptor, sensory neuron, spinal cord, motor neuron, and effector. The sensory nerve carries information from the receptor towards the spinal cord. If it is damaged, the stimulus message may be delayed, weakened, or blocked before reaching the coordinating centre. Consequently the reflex response may become slow or absent. Option A states the direct effect; B, C, and D are unrelated or scientifically unsupported consequences.

Related tags

Control CoordinationReflex ActionSensory NerveControl And CoordinationWorld Of LivingScienceClass 10 Mcq

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