Which of these events happens during excitation-contraction coupling

Question

Quizplus · Accepted Answer

Excitation-contraction coupling refers to the series of events that lead to the contraction of muscle fibers. One of the key events is the release of Ca²⁺ from the sarcoplasmic reticulum (SR) into the cytoplasm of the muscle fiber. This Ca²⁺ binds to the troponin molecules on the thin myofilaments, initiating the contraction process. Therefore, B is the correct choice as it accurately describes one of the key events during excitation-contraction coupling.

Which of These Events Happens During Excitation-Contraction Coupling