I Pinset-HArström

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The tropomyosin-troponin system of the thin filaments acts as a regulator of the interaction of myosin with actin by a process of inhibition. This inhibition is released by Ca2+ ions. Muscle contraction occurs when Ca+2 ions are released from the sarcoplasmic reticulum into the myofibril, where they interact with the troponin of the thin filaments. Muscular(More)
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