Which chamber receives oxygenated blood from the lungs?

Prepare for the NCLEX Cardiovascular System Test! Access multiple choice questions with explanations and hints. Study effectively to ensure success on your exam day.

Multiple Choice

Which chamber receives oxygenated blood from the lungs?

Explanation:
The left atrium is the chamber that receives oxygenated blood from the lungs. After gas exchange in the lungs, oxygen-rich blood returns to the heart via the pulmonary veins and enters the left atrium. From there it moves through the mitral valve into the left ventricle, which then pumps it to the rest of the body. In contrast, the right atrium collects deoxygenated blood from the body via the superior and inferior vena cavae (and the coronary sinus), completing the circuit as the right ventricle sends blood to the lungs for oxygenation.

The left atrium is the chamber that receives oxygenated blood from the lungs. After gas exchange in the lungs, oxygen-rich blood returns to the heart via the pulmonary veins and enters the left atrium. From there it moves through the mitral valve into the left ventricle, which then pumps it to the rest of the body. In contrast, the right atrium collects deoxygenated blood from the body via the superior and inferior vena cavae (and the coronary sinus), completing the circuit as the right ventricle sends blood to the lungs for oxygenation.

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