★ Physiology Quiz
An average heartbeat, or cardiac cycle, lasts approximately:
A. 0,80 seconds
B. 0,008 seconds
C. 8,0 seconds
D. 60 seconds
E. 80 seconds
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The heart Frank-Starling’s law depicts the relation between
A. preload and stroke volume
B. stroke volume and cardiac output
C. afterload and coronary blood flow
D. afterload and stroke volume
E. heart rate and cardiac output
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