| Front | Arteries |
|---|---|
| Back | Function: vessels that carry oxygenated blood away from the heart to the tissues of the body, with two exceptions: 1. Pulmonary arteries carry deoxygenated blood from the heart to the lungs 2. Fetal umbilical arteries carry deoxygenated blood from the body to the placenta Structure: thick- walled, strong vessles that appear whitish when dissected. a) Surrounded by layers of smooth muscle and elastic tissue b) Vessels closest to the heart (ex: aorta) are most elastic - absorb pressure, propel blood through elastic recoil, lessen flow velocity c) Vessels farthest from the heart have more smooth muscle (allowing vasodilation or constriction) |
Tags: cardiovascular
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