How many steps in the muscle excitation,contraction,and relaxation processes require ATP?

Name: How many steps in the muscle excitation,contraction,and relaxation processes require ATP?
Brand: Quizplus
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Question

Quizplus · Accepted Answer

ATP is required at four distinct steps in the muscle excitation, contraction, and relaxation processes: 1) detachment of myosin from actin, 2) cocking of the myosin head, 3) active transport of Ca2+ back into the sarcoplasmic reticulum during relaxation, and 4) operation of the Na+/K+ pump to maintain ion gradients.

How Many Steps in the Muscle Excitation,contraction,and Relaxation Processes Require