A single, brief contraction of all muscle fibers in a motor unit in response to a single action potential is called:
A) recovery oxygen uptake
B) motor unit movement
C) muscle fatigue
D) refractory period
E) twitch contraction

Question

Quizplus · Accepted Answer

A twitch contraction is the response of a muscle to a single brief stimulus, resulting in a quick contraction and relaxation of the muscle fibers in a motor unit.

A Single, Brief Contraction of All Muscle Fibers in a Motor