Final answer:
Systemic circulation is the cardiovascular system's part that transports oxygen-rich blood to the body and returns deoxygenated blood to the heart. It involves the aorta, various arteries, and veins concluding in the inferior and superior venae cavae.
Step-by-step explanation:
Systemic circulation is the part of the cardiovascular system that carries oxygen-rich blood from the heart to the body and returns deoxygenated blood back to the heart. Oxygen-rich blood is ejected from the left ventricle through the aorta, travelling through arteries to various tissues and organs. Once the tissues have absorbed oxygen, the now oxygen-poor blood is carried back to the heart through a network of veins, culminating in the inferior vena cava and superior vena cava, completing the systemic circuit.
Pulmonary circulation is closely linked but separate, responsible for transporting deoxygenated blood to the lungs to be reoxygenated before entering the systemic circulation again. The systemic circuit's primary function is to provide oxygen and nutrients to the body's cells while removing carbon dioxide and other waste products.