NUR 339 Final Exam

NUR 339 Final Exam
1. What is atherosclerosis?
Answer
Inflammatory response to injury to vascular endothelium
2. How is atherosclerosis formed?
Answer
-Injury attracts macrophages to area which digest and transport lipids to the arterial wall
forming fatty streaks
-Fibrous capsule forms over lipids (plaque)
-Plaque protrudes into artery
3. How does atherosclerosis contribute to CV disease?
Answer
-Narrowing ofthe artery (plaque buildup)
-More likely for clots to build up
4. What is the function of cholesterol?
Answer
Used for hormone synthesis and cell membrane formation
5. Where does cholesterol come from?
Answer
Liver and food
6. What do LDLs do?
Answer
Transports cholesterol and triglycerides into the cell and arterial walls (bad cholesterol)
7. What do HDLs do?
Answer
-Transports cholesterol away from the arterial walls (good cholesterol)
-Moves cholesterol to liver for excretion

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