The heart chamber that receives oxygenated blood from the lungs is the:

The heart chamber that receives oxygenated blood from the lungs is the:

• A. Right atrium
• B. Left atrium
• C. Right ventricle
• D. Left ventricle

Answer: (B)

Oxygenated blood from the lungs returns to the heart and enters through the left atrium. The lungs add oxygen to the blood, and this freshly oxygenated blood travels via the pulmonary veins into the left atrium. From there it passes through the mitral valve into the left ventricle and is then pumped out to the body via the aorta. So, the chamber that receives blood from the lungs is the left atrium. In contrast, the right atrium handles deoxygenated blood from the body, the right ventricle sends blood to the lungs, and the left ventricle distributes oxygenated blood to the body.

Oxygenated blood from the lungs returns to the heart and enters through the left atrium. The lungs add oxygen to the blood, and this freshly oxygenated blood travels via the pulmonary veins into the left atrium. From there it passes through the mitral valve into the left ventricle and is then pumped out to the body via the aorta. So, the chamber that receives blood from the lungs is the left atrium. In contrast, the right atrium handles deoxygenated blood from the body, the right ventricle sends blood to the lungs, and the left ventricle distributes oxygenated blood to the body.