The Response to Signals from Muscle Spindles is To

Question

The response to signals from muscle spindles is to
A)decrease the degree of muscle contraction.
B)increase the degree of muscle relaxation.
C)increase the degree of muscle contraction.
D)decrease the frequency of impulses to muscles.

Accepted Answer

Muscle spindles monitor the degree of stretch or length of a muscle. When a muscle is stretched, signals are sent from the muscle spindles to the spinal cord, which then sends signals back to the muscle to contract and resist the stretch. This is known as the stretch reflex and helps to maintain muscle tone and posture. Therefore, the response to signals from muscle spindles is to increase the degree of muscle contraction.