The ________ plays a central role in the circulatory system. It consists of four ________: two for receiving blood and two for pumping blood. A. kidney, veins B. heart, chambers C. heart, veins D. kidney,

asked Jul 15, 2016 181k views

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Heart pumps blood to your body and it has four chambers. Two Atriums and Two Ventricles.

Jomoos answered Jul 22, 2016

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