Sphincter

Sphincter

A ringlike band of muscle that opens and closes an opening in the body. An example is the muscle between the oesophagus and the stomach known as the lower esophageal sphincter.

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Part of Speech: noun
Synonym(s):
Blossary:
Industry/Domain: Medical
Category: Gastroenterology
Company: NIDDK
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Related terms

sphincter

Biology; Urology

A ring of muscle fibers located around an opening in the body that regulates the passage of substances.

sphincter

Medical; Gastroenterology

A ringlike band of muscle that opens and closes an opening in the body. An example is the muscle between the esophagus and the stomach known as the lower esophageal sphincter.

sphincter

Health care; Cancer treatment

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

Agriculture; Dairy science

A ring-shaped muscle that allows an opening to close tightly, such as the sphincter muscle in the lower end of a cow's teat.

sphincter

Medical devices; OBGYN equipment

Circular muscle which closes off a hollow organ during contraction.

sphincter

Health care; General

A ring-shaped muscle that surrounds a natural opening in the body and can open or close it by relaxing or contracting.

hiccups

Medical; Gastroenterology

Sudden , quick breaths that are immediately cut off by a closing of the throat. These are caused by automatic contracting of the diaphragm.

endoscopic retrograde cholangiopancreatography (ERCP)

Medical; Gastroenterology

A test that uses an x ray to look into the bile and pancreatic ducts. The doctor inserts an endoscope through the mouth into the duodenum and bile ducts. Dye is sent through the ...

pyloric stenosis

Medical; Gastroenterology

A narrowing of the opening between the stomach and the small intestine.

autoimmune hepatitis

Medical; Gastroenterology

A liver disease in which the body’s immune system damages liver cells for unknown reasons.

vagus nerve

Medical; Gastroenterology

The nerve in the stomach that controls the making of stomach acid and stomach emptying.

dysphagia

Medical; Gastroenterology

Problems with swallowing food or liquid, usually caused by blockage or injury to the esophagus.

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