Cellular Physiologists Are Looking into the Mechanisms of Cardiomyocyte Contraction

Cellular physiologists are looking into the mechanisms of cardiomyocyte contraction cessation in response to ischemic injury. The left anterior descending coronary artery is ligated at time zero in an animal experiment, and changes in ATP levels within the affected myocardial cells are measured. When does the affected portion of the myocardium stop contracting on the graph?

A) A
B) B
C) C
D) D
E) E

Correct Answer:

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