L28-Additional-sides

L28-Additional-sides - lar disease. Connective tissue...

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The Circulatory Plan of Vertebrates Figure 8.9
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Artery vs. vein Arteries contain 3 layers, the intima (a layer of endothelium), media (smooth muscle cells) and externa (connective tissues). Arteries have abundant elastic and muscle f ibers - hi elastic. Enable them to withstand high pressure · Stretching/recoi l Ð further facilitates blood flow · Smoo th muscle cell Ð contrac t Ðreduce resistanc facilitates b lood flow Veins have the same 3 cellular layers as arteries but la the elastic l ayers. They genera lly have a thinner musc layer. · Veins are more expa ndable than arteries and can expand to hold a large quantity of blood (up to 60 · Many veins have valves that ensure unidirectional flow. · Blood pressure is low. The flow of blood back to th heart is a ided by contraction of the skeletal musc Atherosclerosis Ð the hardening of the arteries Most common car diovascu
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Unformatted text preview: lar disease. Connective tissue Smooth muscle Endothelium (a) Normal artery 50 m Plaque (b) Partly clogged artery 250 m Body tissue Capillary INTERSTITIAL FLUID Net fluid movement out Direction of blood flow Net fluid movement in Blood pressure Inward flow Outward flow Osmotic pressure Arterial end of capillary Venous end Pressure Myocardium This is Figure 8.17, page 369 Office hour Office hour : : Every Monday and Wednesday Every Monday and Wednesday 11am - 12 pm 11am - 12 pm Nat Sci Bldg. Room 3145. Nat Sci Bldg. Room 3145. A set of practice questions will be A set of practice questions will be posted on C-Tools next Monday. posted on C-Tools next Monday. Review session for Exam 3 Review session for Exam 3 Next Thursday (03/25) 6 - 7 pm Next Thursday (03/25) 6 - 7 pm MLB Auditorium 4. MLB Auditorium 4....
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This note was uploaded on 05/29/2011 for the course BIO 225 taught by Professor Pavgi during the Spring '08 term at University of Michigan.

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L28-Additional-sides - lar disease. Connective tissue...

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