A ringlike band of muscle that surrounds a bodily opening, constricting and relaxing as required for normal physiological functioning
A muscle which surrounds, and by its contraction tends to close, a natural opening; as, the sphincter of the bladder
{i} ring-shaped muscle whose function is to constrict or close the body opening or passage which it surrounds
Refers to a muscle that surrounds and closes an opening When an ostomy is performed, the sphincter that allows for control of output is bypassed An ostomy does not have a sphincter
A sphincter is a ring of muscle that surrounds an opening to the body and that can tighten to close this opening. the anal sphincter. a muscle that surrounds an opening in your body, and can become tight in order to close the opening (from sphingein )
A muscular valve that controls the flow of digestive juices (bile and pancreatic juice) through the ampulla of Vater into the second part of the duodenum
The collective name for the muscles used to control the flow of urine from the urinary bladder. These muscles surround the urethra, so that when they contract, the urethra is closed
(Tıp) Sfinkter.Büzgen kas.Vücudun herhangibir deliğinde açılıp kapanan halkamsı kas kümesi. örneğin;Yemek borusu ile mide arasında lower esophageal sphincter (Alt özofagel sfinkter) adıyla da bilinen kas
() From Late Latin sphincter, from Ancient Greek σφιγκτήρ (sphinktēr, “band, contractile muscle”), from σφίγγω (sphingō, “I bind tight”). Compare Sphinx, "the strangler".