Action potentials in muscle fibers cause
A) the sarcoplasmic reticulum to release ATP.
B) the sarcoplasmic reticulum to release calcium.
C) myosin-actin bonds to break.
D) the energizing of myosin molecules.
E) all of these to occur.

Question

Quizplus · Accepted Answer

Action potentials in muscle fibers cause the sarcoplasmic reticulum to release calcium, which is necessary for the contraction of muscle fibers. The other options are not directly caused by action potentials.

Action Potentials in Muscle Fibers Cause