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Exam 2 Chapter 9

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Once AP reaches T-tubules, this causes terminal cisternae to release calcium into sarcoplasm; calcium binds to troponin; tropomyosin changes shape and myosin sites are revealed; myosin binds to actin; calcium activated ATP of myosin; ATPase of myosin activates power stroke movement

Author: Kyra Cavanaugh


Explain what happens after AP gets to T tubules

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