Definition that contains sphincter muscle
- myosis 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 ani the sphincter muscle of the anus
- musculus sphincter ani the sphincter muscle of the anus
- 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
- anal sphincter the sphincter muscle of the anus
- musculus sphincter pylori the sphincter muscle of the pylorus that separates the stomach from the duodenum
- pyloric sphincter the sphincter muscle of the pylorus that separates the stomach from the duodenum
- urethral sphincter a striated sphincter muscle that constricts the urethra
- bladder sphincter the sphincter muscle of the urinary bladder; made up of a thickened muscular layer of bladder around the urethral opening
- musculus sphincter urethrae a striated sphincter muscle that constricts the urethra