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7 Cards in this Set
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- Back
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arteries have branches
veins have... |
tributaries
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Tunics (3)
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Externa (adventitia): CT (collagen > elastin)
Media: smooth m. Intima (interna): endothelial lining; surrounded by CT |
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Histo difference btw arteries and veins (3)
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size of lump (larger in vein), veins may have valves (especially in LE where need to pump blood back to heart), and in vein externa > media and in artery media > externa
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Venae comitantes = accompanying veins Fxns and Exs
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veins (usually paired) accompany a named artery
Fxns: heat exchange, arterial pulsations aid in venous return Ex: brachial, internal thoracic |
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Things that can go wrong (3)
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1. stenosis
2. aneurysm 3. dissection |
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True aneurysm
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dilation of vessel wall (all layers).
1. saccular: bulges in 1 direction 2. fusiform: extends on all sides of vessel |
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pseudoaneurysm
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hole in artery wall, bulge contained by surrounding tissues
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