Cvds Flashcards
(3 cards)
0
Q
What type of process is atherosclerosis?
A
A positive feedback loop
1
Q
Atherosclerosis
A
- endothelium become damaged
- inflammatory response
- white blood cells move into the artery wall
- cholesterol accumulates with white blood cells
- an atheroma forms
- calcium salts and fibrous tissue build up
- a plaque forms
- elasticity of the artery wall reduces
- artery becomes narrower and blood pressure rises
- endothelium is damaged
2
Q
Thrombosis
A
- endothelium is damaged
- platelets come into contact with collagen causing them to change shape
- platelets form a plug and release thromboplastin
- thromboplastin converts prothrombin to thrombin
- thrombin converts fibrinogen to fibrin
- fibrin makes a net
- a blood clot would form
