What signal does the lIA afferent send?It signals the alpha motor neuron to contract theextrafusal muscle fibersO It signals the gamma motor neuron to causecontraction of the intrafusal muscle fibersO It signals to the muscle spindle to stop firingIt signals to the alpha motor neurons to stopfiring so the muscle can relax

The nervous system is derived from ectoderm. It consists of neuron and neuroglial cells. The neuron…

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What signal does the IIA afferent send? It signals the alpha motor neuron to contract the extrafusal muscle fibers

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter8: Muscle Physiology

Section: Chapter Questions

Problem 8UC

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Question

What signal does the lIA afferent send?
It signals the alpha motor neuron to contract the
extrafusal muscle fibers
O It signals the gamma motor neuron to cause
contraction of the intrafusal muscle fibers
O It signals to the muscle spindle to stop firing
It signals to the alpha motor neurons to stop
firing so the muscle can relax

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