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An Increase in Intracellular Calcium Ion Results in Myocardial Contraction,because

Question 17

Multiple Choice

An increase in intracellular calcium ion results in myocardial contraction,because calcium


A) activates membrane calcium pumps.
B) binds troponin, causing actin-binding sites to be exposed.
C) increases affinity of myosin for actin cross-bridge sites.
D) promotes ATP synthesis.

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