Question
Which one of the following is incorrect for Atherosclerosis?
Constriction of arterial luman reduces the blood flow
Loss of dilatation ability of the arterial wall and its rupture
Cholesterol deposition at the inner wall of the artery
Proliferation of the vascular muscles
Solution
B.
Loss of dilatation ability of the arterial wall and its rupture
Atherosclerosis is a condition of wall thickening and narrowing of lumen of medium and large arteries due to formation of atheromas or plaques of cholesterol of at their inner wall. The smooth muscles also proliferate probably caused by release of Platelet Derived Growth Factor (PDGF). Atherosclerosis leads to hypertension, reduced blood supply, angina, heart attack or stroke etc.
