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The circulatory system (cardiovascular system) pumps blood from the heart to the lungs to get oxygen. The heart then sends oxygenated blood through arteries to the rest of the body. The veins carry oxygen-poor blood back to the heart to start the circulation process over.
The circulatory system is a system of organs that includes the heart, blood vessels, and blood which is circulated throughout the entire body of a human or other vertebrate.
circulatory system, system that transports nutrients, respiratory gases, and metabolic products throughout a living organism, permitting integration among the various tissues.
The human circulatory system consists of a network of arteries, veins, and capillaries, with the heart pumping blood through it. Its primary role is to provide essential nutrients, minerals, and hormones to various parts of the body.
View an interactive 3D model of the circulatory system and its major components, including the heart. Also discover conditions that affect the circulatory system.
The circulatory or cardiovascular system is composed of the heart, blood vessels and the blood. It delivers essential substances to the cells of the body.
The human circulatory system consists of several circuits: The pulmonary circuit provides blood flow between the heart and lungs. The systemic circuit allows blood to flow to and from the rest of the body. The coronary circuit strictly provides blood to the heart (not pictured in the figure below).