The Ch. 15 Cardiovascular System - Blood vessels

The Ch 15 - The Cardiovascular System Blood Vessels 1 Anatomy of Blood Vessels Arteries carry blood away from the heart Arterioles small arteries

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1 The Cardiovascular System Blood Vessels
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2 Anatomy of Blood Vessels Arteries carry blood away from the heart Arterioles small arteries enter a tissue and diverge Capillaries thin walls allow exchange of substances between the blood and body tissues
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3 Anatomy of Blood Vessels Venules Small veins convergent vessels that branch off a capillaries Veins carry blood from tissues to the heart
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4 Anatomy of Blood Vessels Blood vessels walls Tunica interna (intima) simple squamous epithelium (endothelium) elastic tissue applied pressure of the blood Tunica media Smooth muscle regulate the diameter of the lumen wall elastic tissue in arteries Tunica externa Elastic tissue collagen
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7 Checkpoint: Collaborative Learning Which vessel – the femoral artery or the femoral vein – has a thicker wall? Why? Artery (High pressure) Which has a wider lumen? Vein
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Anatomy of Blood Vessels Artery Have high compliance Stretch or expand without tearing in response to increases in pressure Sympathetic nervous innervation initiates muscular arteries to undergo… Vasoconstriction (shrink)
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This note was uploaded on 01/30/2011 for the course BIO 305 taught by Professor Fg during the Spring '10 term at Ohio Northern University.

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The Ch 15 - The Cardiovascular System Blood Vessels 1 Anatomy of Blood Vessels Arteries carry blood away from the heart Arterioles small arteries

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