Narrow

Narrow is a term used in various contexts in medicine, biology, and other sciences. It generally refers to something that is less wide than usual or expected, or to a condition or state where the normal width or diameter of a structure or passage is reduced.

Medical context

In a medical context, the term "narrow" is often used to describe conditions where the normal width or diameter of a structure or passage in the body is reduced. This can occur in various parts of the body and can be caused by a variety of factors, including disease, injury, or congenital abnormalities.

For example, Narrowing of the arteries (also known as arterial stenosis) is a common condition where the arteries become narrower than normal, often due to the buildup of plaque on the artery walls. This can reduce blood flow and lead to serious health problems such as heart disease and stroke.

Similarly, narrow-angle glaucoma is a type of glaucoma where the angle between the iris and cornea is narrower than normal, leading to increased pressure in the eye and potential vision loss.

Biological context

In a biological context, the term "narrow" can refer to the physical characteristics of organisms or their parts. For example, a species of plant or animal may be described as having narrow leaves or a narrow body shape.

Other contexts

The term "narrow" can also be used in other scientific contexts. For example, in physics, a narrow beam of light refers to a beam that has a small cross-sectional area.

See also

• Stenosis
• Glaucoma
• Arterial plaque

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