Term
| simple squamous epithelium on basal lamina; pericytes |
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Definition
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Term
| through endothelial cell (EC), diffusion, active transport, pinocytosis, fenestrations |
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Definition
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Term
| occluding jxns, inflammation and edema, diapedesis |
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Definition
| transcapillary exchange between adjacent EC |
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Term
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Definition
| continuous endothelium and continuous basal lamina; found in muscle, brain, lung |
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Term
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Definition
| with diaphragms, basal lamina continuous, found in endocrine clands, intestine, kidneys |
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Term
| sinusoidal (discontinuous) capillaries |
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Definition
| large diameter, multiple large fenestrations (no diaphragms), discontinuous basal lamina, found in blood forming organs |
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Term
| metabolic needs of the tissue |
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Definition
| richness of capillary network (beds) determined by.. |
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Term
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Definition
| thickening of tunica media in arterioles at jxn with capillaries |
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Term
| arteriovenous anastomoses |
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Definition
| vessels which connect arterioles directly to venules and shunt blood away from capillary beds |
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Term
coagulation factors
antithrombogenic factors
vasoactive factors
immune responses
growth factors and hormones
oxidative enzymes |
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Definition
| endothelial cell synthesis factors |
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Term
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Definition
| von willebrand factor stored as weibel-palade bodies; mainly in arteries |
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Term
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Definition
| maintain nonthrombogenic barrier between blood and vessel, prevent clotting of normal blood flow |
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Term
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Definition
| vasodilators (nitric oxide) |
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Term
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Definition
| oxidize lipoproteins (mainly LDLs) |
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Term
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Definition
endothelium
subendothelium: CT with scattered "myointimal" cells that have properties of smooth muslcle and fibroblasts and are phagocytic |
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Term
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Definition
smooth muscle
internal and external elastic lamina |
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Term
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Definition
loose CT, elastic fibers my be present
lasa vasorum, nerves, lymphatic vessels |
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Term
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Definition
| monitor changes in BP; carotid sinus, aortic sinus |
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Term
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Definition
| monitor changes in gases, H+ ions; carotid body, aortic bodies |
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Term
increased collages
loss of elastin |
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Definition
| normal aging of blood vessels |
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Term
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Definition
| maintains peripheral resistance |
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Term
hypertension
hypertrophy of smooth muscle |
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Definition
| an increase in arteriole tonus can lead to |
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Term
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Definition
| thickening of arteriole walls and loss of elasticity, caused by hypertension and diabetes |
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Term
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Definition
| lipid enters TI; foamy cells; fibrosis of TI, atrophy of TM; calcifications as lesions progress; ulceration of atheromas provides surface for thrombosis; can lead to aneurisms, embolisms can migrate leading to occlusion of vessels |
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