What does the term 'constriction' refer to in relation to stenosis?

The term 'constriction' is directly associated with the narrowing of a passage, particularly in the context of stenosis. Stenosis itself refers to the abnormal narrowing of a passage in the body, which can occur in various structures such as blood vessels, heart valves, or other tubular systems. When blood vessels are constricted, their diameter is reduced, leading to restrictions in blood flow. This narrowing can result from various factors, including the buildup of plaque, inflammation, or scarring.

Understanding constriction as a synonym for narrowing is crucial in fields such as cardiology and pulmonology, where stenosis often plays a significant role in the presentation and progression of diseases. Recognizing this definition helps in interpreting medical conditions accurately and facilitates appropriate treatment strategies.