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The protective mechanism that involves an external stimulus leading to an immediate muscular contraction is called

Aa depolarization potential.
Ban action potential.
Ca reflex arc.
Da stimulus threshold.

Verified Answer :

Cprotective mechanism is a reflex
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Answer:

C. a reflex arc.

Explanation:

Reflex arc is the term used to describe the body's immediate and involuntary response to arousal of a sensory nerve. For this to happen, the external stimulus is applied to the body and before reaching the brain, this stimulus receives a response in the body's marrow, causing an immediate involuntary muscle contraction without the will or awareness of the body.

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