1.the portion of the circulatory system which carries
deoxygenated blood away from the right ventricle of the heart, to the lungs,
and returns oxygenated blood to the left atrium and ventricle of the heart.
2. Deoxygenated blood leaves the heart, goes to the lungs, and
then re-enters the heart; Deoxygenated blood leaves through the right ventricle through the
pulmonary artery.
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