PHYSIOLOGY
CARDIAC MUSCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Ca2+ involved in contraction?
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Cardiac
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Smooth
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Skeletal
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None of the above
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Explanation:
Detailed explanation-1: -Source of Ca2+ for muscle contraction is both sarcoplasmic (endoplasmic) reticulum as well as extracellular fluid in case of. a. Skeletal muscles.
Detailed explanation-2: -During muscle contraction, Ca2+ is important for triggering the conformational changes in the thin filaments, and ATP is important for providing the contractile forces.
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