ANIMAL PHYSIOLOGY
HUMAN CIRCULATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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At the end of the pulmonary circuit.
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At the beginning of the pulmonary circuit.
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It’s impossible to say with only this information.
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At the beginning of the systemic circuit.
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Detailed explanation-1: -Systemic circulation carries oxygenated blood from the left ventricle, through the arteries, to the capillaries in the tissues of the body. From the tissue capillaries, the deoxygenated blood returns through a system of veins to the right atrium of the heart.
Detailed explanation-2: -Deoxygenated blood from the lower half of the body enters the heart from the inferior vena cava while deoxygenated blood from the upper body is delivered to the heart via the superior vena cava. Both the superior vena cava and inferior vena cava empty blood into the right atrium.
Detailed explanation-3: -The pulmonary artery is an artery that carries deoxygenated blood from the right ventricle of the heart to the lungs for oxygenation. The oxygenated blood from the lungs then enters the left side of the heart which pumps it to the rest of the body.