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4 years ago
What specific blood vessel(s) return(s) oxygenated blood to the left atrium of the heart?
A.   Aorta
B.   Pulmonary veins
C.   Pulmonary artery
D.   Inferior and superior vena cavae
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4 years ago
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Blood vessels are termed arteries or veins based on direction of flow, not whether the blood is oxygenated. Arteries move blood away from the heart and veins move blood toward the heart. The inferior and superior vena cavae return deoxygenated blood to the right atrium. The pulmonary artery moves deoxygenated blood from the heart’s right ventricle to the lungs. The four pulmonary veins return oxygenated blood from the lungs to the left atrium. The aorta moves oxygenated blood from the left ventricle to the rest of the body.
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wrote...
4 years ago
Thank you for this, it helped me understand it perfectly.
wrote...
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4 years ago
Hey, no worries.
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