A brief contraction of all muscle fibers in a motor unit in response to a single action potential moving down the somatic motor neuron is known as
A)isometric contraction.
B)isotonic contraction.
C)tetany.
D)refractory period.
E)twitch contraction.

Question

Quizplus · Accepted Answer

The brief contraction of all muscle fibers in a motor unit in response to a single action potential moving down the somatic motor neuron is known as a twitch contraction.

A Brief Contraction of All Muscle Fibers in a Motor