Final answer:
Systemic circulation is the part of the cardiovascular system that carries oxygen-rich blood away from the heart to the body, except the lungs, and returns deoxygenated blood back to the heart.
Step-by-step explanation:
The part of the circulation that supplies all the body except the lungs is called the systemic circulation. Systemic circulation is the part of the cardiovascular system that carries oxygen-rich blood from the heart to the rest of the body and then returns deoxygenated blood back to the heart.
Oxygen-rich blood leaves the heart through the left ventricle, goes out via the aorta, and is distributed to organs and tissues throughout the body. As the body's cells use the oxygen, the now oxygen-poor blood is collected by veins and returned to the heart via the inferior and superior venae cavae, completing the systemic circuit.