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Definition of System, cardiovascular
Medically reviewed by Min Clinic Staff | Updated: January 2026
System, cardiovascular: The circulatory system which comprises the heart and blood vessels. The system carries nutrients and oxygen to the tissues of the body and removes carbon dioxide and other wastes from them.
The cardiovascular system is a closed tubular system in which the blood is propelled by the heart. The system has two circuits, the pulmonary circuit and the systemic circuit. Each circuit has arterial, capillary, and venous components.