What is the path for blood during circulation?

Blood enters through the heart then through the two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium.

Systemic circulation carries oxygenated blood from the left ventricle, through the arteries, to the capillaries in the tissues of the body. From the tissue capillaries, the deoxygenated blood returns through a system of veins to the right atrium of the heart.

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