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Multiple Choice

What is the function of the systemic circuit?

Systemic circuit moves oxygen-rich blood from the left ventricle out to the body's tissues and returns oxygen-poor blood back to the right atrium. It starts with the left ventricle pumping into the aorta, then branches supply every organ and tissue, where the blood delivers oxygen and nutrients and picks up CO2 and wastes. The now deoxygenated blood returns through the venous system to the right atrium, completing the circulation. This contrasts with the pulmonary circuit, which handles gas exchange in the lungs, and with descriptions that suggest blood never leaves the body or that deoxygenated blood goes from the right atrium directly to the lungs.

Systemic circuit moves oxygen-rich blood from the left ventricle out to the body's tissues and returns oxygen-poor blood back to the right atrium. It starts with the left ventricle pumping into the aorta, then branches supply every organ and tissue, where the blood delivers oxygen and nutrients and picks up CO2 and wastes. The now deoxygenated blood returns through the venous system to the right atrium, completing the circulation. This contrasts with the pulmonary circuit, which handles gas exchange in the lungs, and with descriptions that suggest blood never leaves the body or that deoxygenated blood goes from the right atrium directly to the lungs.