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The cardiovascular system includes: blood, lymph vessels and heart. Vessels are divided into arteries, veins, arterioles, capillaries, and venules. The artery blood flows from the heart through the veins to the heart. The walls of the arteries and veins have three buildings: the inner, middle and outer. The artery can be divided into three types: type of elastic arteries are arteries, arteries mixed muscular type. Veins are classified: type without muscle type, and in Vienna the muscular type.Lymphatic vessels are classified on the lymph capillaries, lymphatic vessels and lymph trunks. In addition the lymphatic vessels are divided into receptacles without muscle and muscle type type type, as well for the cardiovascular system includes the heart, which consists of three layers myocardium, endocardium, and pericardium. Heart plays the role of a pump that pumps the blood to the organs, the heart also entails the following functions: automaticity, conductivity, airway and anxiety.
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