Systole is the ________ phase of the cardiac cycle.
A. Contraction
B. Relaxation
C. Monitoring
D. Termination
Systole is the A. Contraction phase of the cardiac cycle. http://biology.about.com/library/organs/heart/blsystole.htm
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Asked 1/22/2014 12:59:11 PM
Updated 2/4/2014 11:13:04 AM
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