Narrows a biological structure, biomechanically increasing resistance to fluid flow. In vessels, increased blood pressure maintains flow volume.

The word “stenosis” is associated with the narrowing of a vessel or structure. Vascular stenosis is a narrowing of the blood vessels usually caused by a build-up of plaque, a condition called atherosclerosis.  The plaque hardens and narrows your arteries, restricting flow of oxygen-rich blood to other parts of the body. Atherosclerosis can lead to

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