Chapter 15: Atherosclerosis and other Arterial Disorders

These plaques occlude the vessel and may also..

Break free and obstruct blood flow to other areas

Atherosclerosis is the basic physiological change that causes..

Cardiovascular disease

The process of atherosclerosis occurs when..

Endothelial cells of vessel walls are damaged, stimulating inflammation. When this happens WBCs travel to the area of injury. These macrophages engulf LDL molecules in the bloodstream and transform them into foam cells.

Peripheral Artery Disease; And what is a classic symptom?

Occlusive disorder of the peripheral arteries, most commonly occurring in the femoral artery; A classic symptom is intermittent claudication

Foam cells form lipid deposits along the vessel wall, eventually resulting in..

Plaque formation

Aortic dissection

Potentially lethal disorder of the aorta, which is the tearing of the aorta. As a person ages the aortic walls weaken. This weakness leads to splitting of the layers between the inner lining and middle muscular wall; Leading to hematoma that protrudes into the lumen; and reduces blood flow to major arteries arising from the aorta.

Aneurysm

Weakened arterial lining from atherosclerosis; aneurysms feature arterial wall bulges and an uneven interior surface. This malformations increase the risk for rupture.; can lead to internal hemorrhage.