PATHOLOGY MCQ
HEART
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Left atrium receives oxygen-poor blood from the body and pumps it to the left ventricle
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Pumps blood out of the heart
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Left atrium receives oxygen rich blood from the lungs and pumps it to the left ventricle
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None of the above
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Detailed explanation-1: -The left atrium receives blood from the lungs. This blood is rich in oxygen. The left ventricle pumps the blood from the left atrium out to the body, supplying all organs with oxygen-rich blood.
Detailed explanation-2: -Oxygen-rich blood flows from the lungs back into the left atrium (LA), or the left upper chamber of the heart, through four pulmonary veins. Oxygen-rich blood then flows through the mitral valve (MV) into the left ventricle (LV), or the left lower chamber.
Detailed explanation-3: -Left atrium: one of the four chambers of the heart. The left atrium receives blood full of oxygen from the lungs and then empties the blood into the left ventricle.
Detailed explanation-4: -Next is the pulmonary artery that carries blood from the right ventricle to the lungs. The aorta is the body’s largest artery. It carries oxygen-rich blood from the left ventricle to the rest of the body.