It differs from stricture in being applied especially to diffused rather than localized contractions, and in always indicating an origin organic and not spasmodic
Narrowing of a valve or an artery is called stenosis A stenotic valve does not open completely and therefore it obstructs or blocks blood from moving through it normally An artery can become stenotic as well, such that there is obstruction of blood flow through it to the organs of the body
The narrowing or constriction of an opening, such as a blood vessel or heart valve
This term means narrowing This may occur particularly in the cervical or lumbar spine producing cervical stenosis or lumbar stenosis If the narrowing is significant, then there is pressure on the spinal cord itself
Narrowing of the aortic valve opening, causing obstruction of blood flow into the circulation The condition causes the heart to work harder and the muscle in the wall of the left ventricle (lower chamber) to thicken
Absence (atresia), usually congenital, or narrowing (stenosis) of almost any normal body cavity or passage. The more important include atresia of the anus, esophagus, aortic arch, heart valves, and urinary passages; and stenosis of the intestine, urinary passages, pyloric valve (stomach outlet), and heart valves. Most must be surgically corrected soon after birth
A narrowing of the mitral valve, usually caused by rheumatic fever, resulting in an obstruction to the flow of blood from the left atrium to the left ventricle