: pupillary sphincter definition, thesaurus, dictionary , legal,encyclopedia, term explanation, information
- pupillary sphincter
n : a ring of smooth muscle surrounding the iris
Synonyms | Related Words | Antonyms
pupillary : of or relating to the pupil of the eye
pupillary reflex : reflex contraction of the sphincter muscle of the iris in response to a bright light (or certain drugs) causing the pupil to become smaller
sphincter : a ring of muscle that contracts to close an opening
sphincter ani : the sphincter muscle of the anus
sphincter muscle : a ring of muscle that contracts to close an opening
pyloric sphincter : the sphincter muscle of the pylorus that separates the stomach from the duodenum
bladder sphincter : the sphincter muscle of the urinary bladder; made up of a thickened muscular layer of bladder around the urethral opening
urethral sphincter : a striated sphincter muscle that constricts the urethra
anatomical sphincter : a ring of muscle that contracts to close an opening
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