Muscle relaxation
A)is a response to the binding of ACh to the receptor.
B)occurs when calcium is pumped back into the sarcoplasmic reticulum.
C)is a response to the inactivation of acetylcholinesterase by ACh.
D)occurs when the tendons lengthen.

Question

Quizplus · Accepted Answer

Muscle relaxation occurs when calcium ions are actively pumped back into the sarcoplasmic reticulum, causing the muscle fibers to release their tension. This is a necessary step in the process of muscle contraction as it enables the muscle to relax and prepare for another round of contraction.

Muscle Relaxation