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the cardiovascular system includes blood, lymphatic vessels and heart. The vessels are classified on the arteries, veins, arterioles, capillaries, venules and arteriovenuljarnye anastomoses. On arteries blood flows from the heart through the veins to the heart. The wall of the arteries and veins has three shell 1, yet 2 average 3 exterior. Arteries are classified on three types of elastic artery type 1 2, 3 and the artery artery australia type. Veins are classified on the veins and vein type bezmyshechnogo australia type.Lymphatic vessels of the lymph capillaries is divided into the lymphatic vessels and delivering the major lymphatic trunks. In addition the lymphatic vessels are divided into bezmyshechnogo type vessels and vessels, australia type, also to the circulatory system and the heart. The heart is composed of three shells 1 2 3 of the myocardium and endocardium pericardium. The heart has two Atria and two valve. heart plays the role of the pump pumps the blood to the organs to ensure their livelihoods.
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