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Unformatted text preview: tissue. The tunica media, the middle layer, contains circular smooth muscle and elastic fibers. The outer tunica adventitia is connective tissue. Arteries Large elastic arteries have many elastic fibers but little smooth muscle in their walls and carry blood from the heart to smaller arteries with little decrease in pressure. Muscular arteries have much smooth muscle and some elastic fibers and undergo vasodilation and vasoconstriction to control blood flow to different regions of the body. Arterioles are the smallest arteries and have smooth muscle cells and a few elastic fibers and undergo vasodilation and vasoconstriction to control blood flow to local areas....
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This note was uploaded on 12/04/2011 for the course ANTHRO 2000 taught by Professor Monicaoyola during the Fall '10 term at Broward College.
- Fall '10