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mrive3127 mrive3127
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Posts: 509
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5 years ago

Describe how calcium and ATP are involved in muscle contraction.

Textbook 
Anatomy, Physiology, & Disease: An Interactive Journey for Health Professions

Anatomy, Physiology, & Disease: An Interactive Journey for Health Professions


Edition: 2nd
Authors:
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wrote...
5 years ago

ATP and calcium are the "toll" that must be present and "paid" to move muscles. ATP provides the energy to help the myosin heads form and break the cross bridges with actin. When the muscle is relaxed, calcium is stored away from the actin and myosin. When the muscle is stimulated, calcium is released, which allows actin, myosin, and ATP to interact.

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