Atherosclerosis - Definition

Atherosclerosis (pronounced ath-uh-ro-skluh-RO-siss) is the build-up of a waxy deposit on the inside of blood vessels. Atherosclerosis is a form of arteriosclerosis (pronounced ar-tir-ee-o-skluh-RO-siss). Arteriosclerosis refers to any condition in which the arteries become hard and less flexible. The two terms are often used interchangeably, although it is not really correct to do so.

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