Blood Vessels Flashcards
De novo formation of blood vessels during embryogenesis?
vasculogenesis
the process of new vessel formation in the mature organism; neovascularization?
angiogenesis
remodeling of existing arteries in response to chronic changes in pressure or flow?
arteriogenesis
smooth muscle cells that are not contractile but able to divide?
neointimal
a clinically significant hypertension?
> 139/>89
accelerated or malignant hypertension?
> 200/120
“hardening of the arteries” and loss of elasticity?
arteriosclerosis
a form of arteriosclerosis and an example of dystrophic calcification; affects medium muscular arteries of arms and legs?
Monkeberg’s medial calcific sclerosis
characterized by intimal lesions called atheromas protruding into vessel lumens?
atherosclerosis
an acute phase reactant, downstream of a number of inflammatory triggers; induces a prothrombotic state; strongly predicts risk of MI or stroke?
C reactive protein
the major mechanism of atherogenesis?
hemodynamic disturbances, lipids, inflammation, infection
a localized abnormal dilation of a blood vessel or the heart?
aneurysm
aneurysm involving an intact attenuated arterial wall or thinned ventricular wall of the heart?
true aneurysm
defect in the vascular wall leading to an extravascular hematoma freely communicating with intravascular space?
false aneurysm
2 most important disorders predisposing to aortic aneurysms?
atherosclerosis and hypertension
aneurysms in the circle of willis?
berry aneuryms
the major risk factor of aortic dissection?
hypertension
the most common form of vasculitis in old people in US/Europe; chronic, granulomatous inflammation of large to small sized arteries predominately in head (nodular intimal thickening)?
giant cell (temporal) arteritis
tongue necrosis?
giant cell arteritis
a systemic vasculitis of small or medium sized muscular arteries; 30% associated with chronic Hep B?
polyarteritis nodasa