What is the main factor that determines the power of a muscle?
A) the length
B) the number of neurons innervating it
C) the total number of muscle fibers (cells) available for contraction
D) the shape

Question

Quizplus · Accepted Answer

The total number of muscle fibers available for contraction is the main factor that determines the power of a muscle. This is because each muscle fiber can only produce a certain amount of force, so the more fibers that are available to contract, the more force the muscle can generate. The length, shape, and number of neurons innervating the muscle can also have an impact on its overall function, but they are not the primary determinants of muscle power.

What Is the Main Factor That Determines the Power of a Muscle