Question

What happens after muscle contraction?

Accepted Answer

- no further action potential at sarcoplasmic reticulum- Ca2+ actively transported back into sarcoplasmic reticulum- using ATP produced by mitochondria in respiration- Ca2+ detaches form Ca2+ receptors on tropomysosin- tropomyosin covers binding sites on actin- myosin heads can no longer bind- cross-bridges can no longer form

Front	What happens after muscle contraction?
Back	- no further action potential at sarcoplasmic reticulum - Ca2+ actively transported back into sarcoplasmic reticulum - using ATP produced by mitochondria in respiration - Ca2+ detaches form Ca²⁺ receptors on tropomysosin - tropomyosin covers binding sites on actin - myosin heads can no longer bind - cross-bridges can no longer form

Sarcoplasmic Reticulum Ca2+ Form Longer Muscle Contraction Action