sphincteral
Adjective: - Relating to a sphincter: "sphincteral" describes something that pertains to or is characteristic of a sphincter, which is a ring-shaped muscle that contracts and relaxes to control the passage of substances through a bodily opening or passage.
- (Referring to the working of the ring-shaped muscle that controls flow.)
- (Involuntary contractions of the sphincter muscle.)
- (Injury to the ring-shaped muscle.)
"sphincteral apparatus": the collective set of muscles and structures forming a sphincter.
- The anal sphincteral apparatus consists of internal and external muscles. (The complete muscular system of the anal sphincter.)
"sphincteral control": the ability to voluntarily regulate the contraction and relaxation of a sphincter muscle.
- Loss of sphincteral control is a common symptom of certain neurological disorders. (Inability to manage the muscle's opening and closing.)
Sphincter (noun): a ring-shaped muscle that opens and closes a bodily passage.
- The pyloric sphincter controls the flow of food from the stomach to the small intestine. (A specific example of such a muscle.)
Sphincteric (adjective): an alternative form meaning the same as "sphincteral."
- Sphincteric tone is important for maintaining continence. (Muscle tension in a sphincter.)
Sphincterial (adjective): another variant with the same meaning.
- The sphincterial muscles are located at various points in the body. (Referring to the muscles themselves.)
- Constrictor: a muscle that contracts or narrows a passage (though not exclusively a sphincter).
- Ring muscle: a descriptive term for a sphincter's circular shape.
"To tighten the sphincter": a colloquial expression meaning to become tense or anxious, often in a stressful situation.
- When the roller coaster started, he tightened his sphincter. (He became physically tense due to fear.)
"Sphincter moment": informal slang for a situation that causes sudden fear or stress.
- That near-miss car accident was a real sphincter moment. (A very frightening experience.)