Muscles have which efferent nerve fibers for regulating tone?
Correct Answer: Gamma neuron
Description: Ans. is 'b' i.e., Gamma neuron(Ref: Ganong 23'd/e p.158-162; Guyton 12n/e p. 657)Muscle tone is maintained by stretch reflex through muscle spindles (intrafusal fibers).
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Physiology
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