Excitation- contraction coupling requires which of the following substances?

Question

Quizplus · Accepted Answer

Excitation-contraction coupling requires both Ca2+ and ATP. Ca2+ is necessary for the release of neurotransmitters at the neuromuscular junction and for the binding of troponin to initiate muscle contraction. ATP is required for the activation of myosin heads, which is necessary for the sliding of actin and myosin filaments and muscle contraction. Glucose is not directly involved in this process.

Excitation- Contraction Coupling Requires Which of the Following Substances