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Mathematics 19 Online
OpenStudy (javsteratl):

Describe how blood flows through the heart.

OpenStudy (rayep12):

Blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium. As the atrium contracts, blood flows from your right atrium into your right ventricle through the open tricuspid valve.

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