Arthrosclerosis is described as which?

• A. Deposit of plaque on arterial walls, causing stenosis
• B. Thickening/hardening of arterial walls, typical of old age
• C. A widening of arteries
• D. Calcification of veins

Answer: (A)

Atherosclerosis involves the buildup of plaque within the inner lining of arteries, causing the lumen to narrow (stenosis). Plaques are composed of lipids, cholesterol, calcium, inflammatory cells, and fibrous tissue, and their presence reduces blood flow. If a plaque ruptures, it can trigger clot formation and lead to ischemic events like heart attack or stroke. This description fits the concept of atherosclerosis best. In contrast, thickening and hardening of arteries due to aging is arteriosclerosis, widening of arteries suggests an aneurysm, and calcification of veins is not related to this process.