MEDICAL
HEART AND PERICARDIUM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following describes systemic circulation?
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Deoxygenated blood is elivered to the lungs by the aorta.
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Oxygenated blood is returned to the right atrium by the pulmonary vein.
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At the capillaries, the blood changes from blue to red as it picks up oxygen.
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At the capillaries, the blood changes from red to blue as it drops off oxygen in body tissues.
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Explanation:
Detailed explanation-1: -While by convention arteries are drawn as red and veins as blue, in the pulmonary circulation arteries actually carry desaturated blood (systemic venous “blue blood"), and the pulmonary veins carry highly saturated blood (systemic arterial “pink blood").
Detailed explanation-2: -So, the correct answer is ‘Left auricle →→ Left ventricle →→ Aorta →→ Arteries →→ Tissues →→ Veins →→ Right atrium’. Was this answer helpful?
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