In skeletal and cardiac muscles, relaxation occurs as ________ ions are pumped back into the sarcoplasmic reticulum.

Question

Quizplus · Accepted Answer

Relaxation occurs in skeletal and cardiac muscles when calcium ions are pumped back into the sarcoplasmic reticulum. This allows for the muscle fibers to relax and return to their resting state. Sodium, potassium, and chloride ions do not play a direct role in muscle relaxation.

In Skeletal and Cardiac Muscles, Relaxation Occurs as ________ Ions