Health, 12.11.2020 19:10 midsky

I need help putting these steps in order. Ca2+ pumps restore Ca2+ to SR → relaxation!

Action potential travels down the axon in response to nerve stimulus.

Myosin binds to actin

Action potential causes Ca2+ release from SR

Myosin pulls actin chain along and Sarcomere shortens → contraction!

Action potential travels down the T Tubule and into Sarcoplasmic Reticulum (SR)

Ca2+ binds to troponin. Troponin moves tropomyosin uncovering myosin binding site on actin

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I need help putting these steps in order. Ca2+ pumps restore Ca2+ to SR → relaxation!

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