Muscle tone in a skeletal muscle is:
A)a state of slight contraction that does not depend upon nerve impulses
B)a state of prolonged contraction necessary to do efficient work
C)a state of slight contraction that depends upon nerve impulses
D)a state of relaxation to prepare for contraction

Question

Quizplus · Accepted Answer

Muscle tone in a skeletal muscle refers to a state of slight contraction that is maintained even when the muscle is at rest. This muscle tone is necessary to keep the muscle ready to respond rapidly to nerve impulses. Therefore, muscle tone in a skeletal muscle depends upon nerve impulses. Option A and D are incorrect because they state that muscle tone does not depend upon or requires a state of relaxation, respectively. Option B is incorrect because it suggests that muscle tone requires prolonged contraction, which is not the case.

Muscle Tone in a Skeletal Muscle Is