Describe calcium's role in the contraction of the sarcomere in skeletal and cardiac muscle tissues.Include the following in your answer: sarcomere, myosin, actin, myosin-binding sites, cross bridge, sarcoplasmic reticulum, ATP, ADP and Pᵢ, troponin, tropomyosin, and Ca²⁺ channels.
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Q2: Q5: Q57: Match the following terms with the descriptions Q314: Distinguish between twitch summation and motor recruitment Q315: Match muscle term with the correct characteristic. Q317: The structure labeled _ contains only three Q318: Which region(s) marked by arrows or brackets Q319: Indicate which type of muscle is associated Q320: Match muscle term with the correct characteristic. Q321: How does contraction of smooth muscle differ![]()
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