How Does the Heart Supply Blood Throughout Our Body

As our heart contracts, blood is pumped from the left ventricle into the aorta. Blood moves from the aorta into the arteries, then arterioles, and finally tiny capillaries in our tissue. The blood leaving our left ventricle is rich with oxygen while the blood returning to our heart from tissue throughout our body has given up oxygen to working cells while acquiring carbon dioxide. This blood is then pumped by the right ventricle to the lungs to reload the hemoglobin with oxygen and release carbon dioxide.

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