★ EKG CCMA Quiz
Systole is the phase of the cardiac cycle in which the
A. heart relaxes
B. atrium contracts
C. ventricles relax
D. ventricles contract
Select your answer:

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A. between 2-4 hours
B. 2-6 hours after death
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Cardiorespiratory fitness does not help with lifetime wellness.
A. TRUE
B. FALSE