Damage to the heart and arteries
Atheroma, aneurysms, thrombosis and myocardial infarction
- Created by: :)
- Created on: 03-12-12 12:00
View mindmap
- Atheroma
- High blood pressure damages the endothelium. white blood cells & lipids clump together, build up and harden to form a fibrous plaque (atheroma).
- Partially blocks the artery lumen, restricting blood flow and icreasing blood pressure.
- Myocardial Infarction
- This can cause complete artery blockage. The glucose and oxygen supplies are cut off.
- If a coronary artery is blocked off, a part of the heart recieves no oxygen or glucose and the muscles begin to die. Heart attack.
- Myocardial Infarction
- Atheroma plaques narrow and weaken arteries, and narrow arteries to increase blood pressure.
- Aneurysm
- Blood travels through a weakened area at high pressure, pushing inner artery layers through the outerelastic layer to form a balloon like swelling.
- Aneurysm
- Atheroma causes rupture in the endothelium, leaving a rough surface.
- Thrombosis
- Platelets and fibrin accumulate the damage site to form a thrombus (blood clot).
- This can cause complete artery blockage. The glucose and oxygen supplies are cut off.
- Thrombosis
Comments
No comments have yet been made