Question

the heart chamber that receives oxygenated blood from lungs
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Answer 1

The right and left atria are the top chambers of the heart and receive blood into the heart. The right atrium receives deoxygenated blood from systemic circulation and the left atrium receives oxygenated blood from pulmonary circulation.

Answer 2

Left Atrium receives the oxygenated blood from Pulmonary Veins coming from Lungs.

It is then transferred to Left Ventricle and from there throughout the body.