By varying the ________ at any one time, the nervous system provides precise control over the pull exerted by the muscle.

Question

Quizplus · Accepted Answer

The number of motor units activated is the best choice because it refers to the recruitment of different motor units within a muscle. By activating more or fewer motor units, the nervous system can control the amount of force generated by the muscle at any given time. This allows for precise control over the pull exerted by the muscle. The other options are either unrelated or do not directly affect the force generated by the muscle.

By Varying the ________ at Any One Time, the Nervous