Excitation-contraction coupling begins with
A) the depolarization at the T tubules.
B) the production of an action potential in the sarcolemma.
C) the release of Ca2+ from the sarcoplasmic reticulum.
D) the release of the cross-bridge.
Correct Answer:
Verified
Q199: Q200: The H zone Q201: Why is the contraction strength of smooth Q202: In order for excitation-contraction coupling to occur, Q203: Which fibers are primarily responsible for producing Q205: Which of the following would be caused Q206: Athletes who train at high altitudes increase Q207: Michael Jordan was arguably the best player Q208: The training regimen of a competitive weight Q209: A volleyball player depends on the gastrocnemius![]()
A) contains only myosin myofilaments.
B)
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