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Anatomy and Physiology – Muscular System Practice Test 2026 - Free Muscular System Practice Questions and Study Guide Flash Cards

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In smooth muscle, excitation-contraction coupling involves calcium binding to which molecule, leading to activation of MLCK and phosphorylation of myosin heads?

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Calcium binds to calmodulin, activating myosin light-chain kinase, which phosphorylates myosin heads to interact with actin.

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