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7 Cards in this Set
- Front
- Back
Capillary Types
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Capillary Types:
1.) Continuous 2.) Fenestrated -holes through capillary -continuous basal lamina 3.) Discontinuous -holes through capillary -basal lamina discontinuous |
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Layers of Vessel Wall
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Layers of Vessel Wall: (Out to In)
1.) Tunica Externa (Adventitia) -Vasa Vasorum in large vessels 2.) Tunica Media -vary composition of elastic fibers : smooth muscle -Arteries Big to Small: -Elasticity decreases -Smooth muscle increases 3.) Tunica Intima |
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Pericytes
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Pericytes:
-cells around capillaries -contractile function -can function as stem cells for repair |
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Arteries vs. Veins
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Arteries vs Veins
Veins: -thinner walls -thicker lumen -valves (folds of tunica intima) |
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Layers of Cardiac Wall
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Layers of Cardiac Wall:
1.) Pericardium a.) Parietal Layer b.) Visceral Layer (epicardium) 2.) Myocardium -thickest in left ventricle 3.) Endocardium a.) Subendocardium - some texts say separate layer (between Endocardium & Myocardium) -Purkinje fibers in ventricle subendocardium |
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Artery Pathology
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Artery Pathology:
1.) Atherosclerosis (degeneration of walls) 2.) Aneurysm 3.) Stroke 4.) Vasculitis |
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Vein Pathology
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Vein Pathology:
1.) Phlebitis (inflammation of vein, usually clot-associated) 2.) Varicose Veins (valve insufficiency) |