Week 13 extras 3

Week 13 extras 3 - Regulation of Venous Return and End...

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Regulation of Venous Return and End Diastolic Volume
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  see pg. 11 of packet and 4/20 in notes 
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Blood Vessel Layers 
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Tunica intima -  Tunica media Tunica externa 
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Arteries 
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Elastic Stretch during ventricular contraction  because blood is pushed into blood  system
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Recoil during ventricular relaxation Arteries push blood forward Veins 
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Collect blood from tissues and return it to  the heart Walls of veins are thinner than arteries, 
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but diameters are bigger Veins may have valves to prevent  backflow Compression of veins by the contraction  of adjacent skeletal muscle helps keep  pushing blood flow along in veins 
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Blood Vessels 
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Elastic Arteries Muscular artery Arterioles Continuous capillary Fenestrated capillary Venule Medium-sized vein
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Large vein  Elastic Artery 
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Tunica intima is made up of endothelium  and internal elastic layer Used for checking pulse 
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Continuous Capillary
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  Most of the body is supplied by  continuous capillaries
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Endothelium is a complete lining 
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This note was uploaded on 02/11/2010 for the course AHS 132 taught by Professor Klinger during the Spring '09 term at Nassau CC.

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Week 13 extras 3 - Regulation of Venous Return and End...

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