What is the term for the narrowing of an opening?

• A. Stenosis
• B. Hypotension
• C. Infarct
• D. Pitting edema

Answer: (A)

The term that refers to the narrowing of an opening is "stenosis." This medical terminology is commonly used to describe a reduction in the diameter of a tubular structure in the body, such as blood vessels, heart valves, or other passages. Stenosis can lead to various health issues depending on its location and severity, as it can impede blood flow or the movement of other bodily fluids through the narrowed area.

The other choices do not pertain to narrowing of openings. Hypotension is related to low blood pressure, infarct refers to tissue death due to lack of blood supply, and pitting edema describes swelling due to fluid retention that leaves a depression when pressed. Each of these terms addresses different medical conditions and does not involve the concept of narrowing.