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Muscle contraction

Muscle contraction

Sapphire123

Do calcium ions diffuse into the muscle cell fro contraction when they are released by the sarcoplasmic reticulum?

Reply 1

Angry cucumber

Yes they do, the sarcoplasmic reticulum are the intracellular store of calcium ions in a muscle cell. These release calcium which bind to troponin, clearing the way for myosin to bind to actin and hence muscle contraction :smile:

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