Which heart chamber receives oxygenated blood from the lungs?

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Multiple Choice

Which heart chamber receives oxygenated blood from the lungs?

Explanation:
Blood flows through the heart in a loop, and the step where oxygenated blood from the lungs first enters the heart is into the left atrium. After gas exchange in the lungs, blood returns via the pulmonary veins and fills the left atrium. From there, it moves through the mitral valve into the left ventricle, which then pumps this oxygen-rich blood to the rest of the body via the aorta. The right side of the heart handles deoxygenated blood: it collects it from the body into the right atrium, passes it to the right ventricle, and sends it to the lungs. A useful detail to remember is that, unlike most arteries, the pulmonary veins carry oxygenated blood back to the heart, while the pulmonary artery carries deoxygenated blood to the lungs.

Blood flows through the heart in a loop, and the step where oxygenated blood from the lungs first enters the heart is into the left atrium. After gas exchange in the lungs, blood returns via the pulmonary veins and fills the left atrium. From there, it moves through the mitral valve into the left ventricle, which then pumps this oxygen-rich blood to the rest of the body via the aorta. The right side of the heart handles deoxygenated blood: it collects it from the body into the right atrium, passes it to the right ventricle, and sends it to the lungs. A useful detail to remember is that, unlike most arteries, the pulmonary veins carry oxygenated blood back to the heart, while the pulmonary artery carries deoxygenated blood to the lungs.

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