Question

define the sphincter

Answer 1

Answer:

Sphincter is the ring of muscles to protect or close an opening. Example:- Anal sphincter, gastric sphincter.

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Answer 2

Sphincters are special, circular muscles that open and close certain body parts. Most often, the action of a sphincter is to regulate the passage of some type of fluid, such as bile, urine or fecal matter.

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