The process by which action potentials cause muscle contraction is
A)the sliding filament theory.
B)excitation-contraction coupling.
C)the electromechanical release mechanism.
D)Both excitation-contraction coupling and the electromechanical release mechanism.

Question

Quizplus · Accepted Answer

The process by which action potentials cause muscle contraction is called excitation-contraction coupling, and it involves the release of calcium ions from the sarcoplasmic reticulum, which then triggers the sliding of myofilaments to generate force. This is also referred to as the electromechanical release mechanism, so both options D are correct. Option A (the sliding filament theory) refers to the movement of myofilaments during muscle contraction and is not related to the process of action potentials and muscle contraction.

The Process by Which Action Potentials Cause Muscle Contraction Is