Muscle Contraction

Item #3 of 10

Extrafusal muscle fibers are innervated by ________________________.

gamma motor neurons;

alpha motor neurons;

Golgi motor neurons;

spindle motor neurons;

none of the alternatives provided is correct;

INCORRECT - Gamma motor neurons innervate intrafusal, not extrafusal, muscle fibers.

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		gamma motor neurons;
		alpha motor neurons;
		Golgi motor neurons;
		spindle motor neurons;
		none of the alternatives provided is correct;