circulatory system

n. blood-pumping system of the body (which includes the heart, blood vessels and lymphatic vessels involved in the circulation of the blood and lymph)

Circulatory system n. The system of structures, consisting of the heart, blood vessels, and lymphatics, by which blood and lymph are circulated [more]Circulatory system - Community and Resources

Noun
1. the organs and tissues involved in circulating blood and lymph through the body
(synonym) cardiovascular system
(hypernym) vascular system
(hyponym) fetal circulation, foetal circulation
(part-holonym) body, organic structure, physical structure
(part-meronym) liver

The circulatory system is a composed of the heart, arteries, capillaries and veins. It serves to transport blood low in oxygen from the body to the lungs and heart (veins) and oxygenated blood from the lungs and heart throughout the body (arteries). (see heart, blood).

The system that contains the heart and the blood vessels and moves blood throughout the body. This system helps tissues get enough oxygen and nutrients, and it helps them get rid of waste products. The lymph system, which connects with the blood system, is often considered part of the circulatory system.