The heart is considered to be a double pump because it has two separate chambers - one that is specific for pumping oxygenated blood and one that is specific for pumping deoxygenated blood. Each half of the heart is made up of a ventricle and an atrium. The right atrium and right ventricle are the pump specific for oxygenated blood; the left atrium and left ventricle are specific for deoxygenated blood.
Nov 24th, 2014
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