HPRS 2301 Unit 4 Exam Questions With 100% Verified Answers
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Course
HPRS 2301
Institution
HPRS 2301
HPRS 2301 Unit 4 Exam Questions With
100% Verified Answers
What is atherosclerosis? - answerHardening of the arteries caused by the formation of fibro-
fatty lesion *plaque* within the vessel wall
What are the main causes of atherosclerosis? - answer1. A genetic component
2. Hypercholesterolem...
2. May increase in numbers by the second decade of life, and remain static or regress
What happens during plaque structure? - answer✔The aggregation of the different leukocytes
and smooth muscle cells in an ECM that includes collagen and elastic fibers result in the
collagen cap that isolates cholesterol known as the fibrous plaque
fibrous plaque - answer✔Smooth muscles cells proliferate, produce collagen and migrate over a
fatty streak
What is an unstable plaque? - answer✔A plaque that has a large lipid core and a thin cap, and
can rupture more readily, producing a thrombus
What are the clinical manifestations of atherosclerosis? - answer✔1. Narrowing and obstruction
of blood vessels, and formation of blood clots
2. Aneurysms
*manifestations do not become evident for 20-40 years or longer*
What is an aneurysm? - answer✔a localized weak spot or balloon-like enlargement (dilation) of
the three layers of the wall of an artery
What are the two causes of aneurysms? - answer✔1. Atherosclerosis; erodes and weakens the
wall
2. Hypertension; increases wall stress
What are the clinical manifestations of aneurysms? - answer✔They are usually *asymptomatic*
until they *rupture* which is the worst complication
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