Which of the following processes usually results in muscle fatigue?
A) Using muscles increases the breakdown of acetylcholinesterase.
B) Muscle fiber sodium channels become "leaky" during prolonged use.
C) Internal organelles responsible for picking up calcium develop "leaky channels" as muscles are used.
D) Actin and myosin molecules break due to overuse.

Question

Quizplus · Accepted Answer

Muscle fatigue is often caused by the accumulation of metabolic byproducts and the inability of the sarcoplasmic reticulum to effectively regulate calcium ions, leading to "leaky channels" and impaired muscle contraction.

Which of the Following Processes Usually Results in Muscle Fatigue