Disorders of the Heart 1 Arteriosclerosis narrowing of

Disorders of the Heart 1. Arteriosclerosis: narrowing of the arteries due to the deposit of cholesterol-rich plaques inside the wall of an artery.

2. Atherosclerosis – when cholesterol becomes deposited under the lining of arteries, forming plaque. Video: http: //www. youtube. com/watch? v=o. ZJl. Zywg. QL 8

Treatments for blocked arteries 1. Aspirin - used to prevent platelets from sticking together. Video: http: //www. youtube. com/watch? v=KKLqi. YWe. CQ 2. Clot busting drugs - used to dissolve clots. These drugs can work within three hours and prevent the full onset of a stroke.

Angioplasty - a surgical procedure in which a fine plastic tube is inserted into a clogged artery and a balloon is inflated to push the artery open. Video: http: //www. youtube. com/watch? v=S 9 Aq. Bd 4 RExk

Coronary by pass - involves removing a segment of a healthy blood vessel and using it to create a new pathway around a blocked vessel in the heart. Video: http: //www. youtube. com/w atch? v=ym. VNmm. Hc-BQ

3. Hypertension: This is high blood pressure. The heart must work harder to pump blood and it weakens over time. This may result in a heart attack. Blood vessels in the brain may rupture causing a stroke. Video: http: //www. thevisualmd. com/health_centers/cardiovascular_health/hyperten sion/what_is_hypertension_video

What causes hypertension? Cholesterol can cause arteries to become clogged • A diet high in salt can cause the blood to retain more water and increase the volume of blood. • Nicotine, caffeine and alcohol can increase heart rate • Heredity, age, lack of exercise, smoking and obesity •