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1431cv8 - thick – 5 of total blood volume – site of...

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8 Circulation Arteries - carry blood away from the heart – layers of connective tissue and smooth muscle – no gas exchange Arterioles - circular layers of smooth muscle – regulate blood flow Capillaries - very tiny, thin walled vessels - one cell
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Unformatted text preview: thick – 5% of total blood volume – site of nutrient and gas exchange – 800 times the cross sectional area of 1 inch aorta – very slow movement - diffusion...
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