Myocardium: Its function is to rhythmically shorten and then relax so as to provide motive force to pump blood through the vascular system.
Answered 12/1/2014
3.5k views
Pump blood: The heart muscle relaxes, and the chamber gets bigger and fills up with blood. The heart muscles squeezes and pumps blood out. (Valved in the heart make sure everything goes forward.)
Answered 12/20/2014
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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