Show pageBacklinksCite current pageExport to PDFBack to top This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong. ====== Sphincter ====== A sphincter is an anatomical structure, a cylindrical muscle that normally maintains constriction of a natural body passage or orifice and which relaxes as required by normal physiological functioning. Sphincters are found in many animals; there are over 50 types in the human body, some microscopically small, in particular the millions of precapillary sphincters. Sphincters relax at death, possibly releasing fluids. see [[Bladder dysfunction]] sphincter.txt Last modified: 2024/06/07 02:56by 127.0.0.1