The systemic circulation refers to which of the following? *1 pointThe movement of blood into the coronary arteries, through capillaries into the coronary sinus.The movement of blood from the pulmonary trunk, through capillaries into the pulmonary veins.The movement of blood from the aorta, through capillaries, then eventually into the vena cavae.The flow of blood into the right atrium and eventually out of the left ventricle.
Question
The systemic circulation refers to which of the following? *1 pointThe movement of blood into the coronary arteries, through capillaries into the coronary sinus.The movement of blood from the pulmonary trunk, through capillaries into the pulmonary veins.The movement of blood from the aorta, through capillaries, then eventually into the vena cavae.The flow of blood into the right atrium and eventually out of the left ventricle.
Solution
The systemic circulation refers to "The movement of blood from the aorta, through capillaries, then eventually into the vena cavae."
Here's a step-by-step explanation:
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Systemic circulation begins when oxygen-rich blood is pumped from the left ventricle of the heart into the aorta.
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The aorta branches out into many smaller arteries, arterioles, and then capillaries. This is where oxygen and nutrients are exchanged for carbon dioxide and waste products at the cellular level.
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The deoxygenated blood then travels through venules, which merge into veins.
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The veins carry the blood back to the heart, specifically to the right atrium, via the vena cavae (the superior and inferior vena cava).
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This completes the systemic circulation loop as the blood is then ready to be pumped to the lungs for oxygenation, starting the pulmonary circulation.
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