Arteries Veins and Capillaries
For example the aorta is the largest and main. The blood then moves back to the heart through a series of veins of increasing size and muscle. Veins Capillaries Arteries The Aorta And Distributed To Systemic Arteries The Carotid Arteries Arteries And Veins Arteries Circulatory System From the tissue capillaries the deoxygenated blood returns through a system of veins to the right atrium of the heart. . Blood is pumped from the heart in the arteries. Capillaries have thin walls that allow oxygen carbon dioxide nutrients and waste products to pass into and out of cells. The vein wall consists of three layers. There are two main. The walls of arteries are thicker than the walls of veins with more smooth muscle and elastic tissue. The brachiocephalic left common carotid and. Discover how arteries veins and capillaries deliver blood to and from the heart the lungs and the rest of the body. Capillaries are small