Excitation-contraction coupling in the heart can be described as
A) a cyclical change in heart function leading to production of action potentials that can be recorded as ECG
B) a sequence of processes that link the electrical changes in the heart to its contraction
C) the changes in heart metabolism in response to contraction
D) production of special type of depolarizations that only happen in the autorhythmic fibers
Correct Answer:
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