atherosclerosis- lqc 6a

Question 1

Which type of blood vessel does atherosclerosis usually occur in?

Answer 1

arteries

Question 2

step 1 of atherosclerosis process

Answer 2

Damage to the endothelium of the wall of an artery

Question 3

step 2 of atherosclerosis process

Answer 3

This triggers an inflammatory response – there is an accumulation of white blood cells as they move into the damaged wall

Question 4

step 3 of atherosclerosis process

Answer 4

This causes a build up of cholesterol in the artery wall which forms a fatty build up called an atheroma

Question 5

step 4 of atherosclerosis process

Answer 5

The build up of calcium salts and fibrous tissue, forming a hard plaque in the artery wall

Question 6

step 5 of atherosclerosis process

Answer 6

The artery wall hardens and becomes less elastic

Question 7

step 6 of atherosclerosis process

Answer 7

the artery lumen becomes narrower

Question 8

step 7 of atherosclerosis process

Answer 8

The person now has atherosclerosis (hardening of the arteries)

Question 9

step 8 of atherosclerosis process

Answer 9

Atherosclerosis is a self–perpetuating or positive feedback process; the narrow lumen causes a further increase in blood pressure which can cause further damage to the artery endothelium.

Question 10

risk factors of atherosclerosis

Answer 10

1. High blood cholesterol
2. High blood pressure