PHYSIOLOGY
MUSCLE CONTRACTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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inhibitor substances
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action potential
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troponin/troppmyosin
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acetylcholine
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fibrillation
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Explanation:
Detailed explanation-1: -Troponin-tropomyosin greatly inhibits this binding at low ratios of M or MD to actin while at high ratios the binding becomes even stronger than in the absence of troponin-tropomyosin.
Detailed explanation-2: -Troponin I (TnI) is the component of the troponin complex that inhibits actomyosin ATPase activity, and Ca(2+) binding to the troponin C (TnC) component reverses the inhibition.
Detailed explanation-3: -Calcium binding to troponin C as a primary step of the regulation of contraction.
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