Home > Term: sphincter
sphincter
A ring-shaped muscle that relaxes or tightens to open or close a passage or opening in the body. Examples are the anal sphincter (around the opening of the anus) and the pyloric sphincter (at the lower opening of the stomach).
- Part of Speech: noun
- Industry/Domain: Health care
- Category: Cancer treatment
- Company: U.S. HHS
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Creator
- Lionel M
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