What is the role of the sphincter muscles in the alimentary canal ?
Name the two sphincter muscles present in the human digestive system and their location?

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Solution

Dear student,
a) Sphincter muscles present in human digestive system are oesophageal sphincter muscles at lower and upper end of oesophagus, pylorus sphincter muscle, ileocecal sphincter muscle, sphincter of Oddi.
Oesophageal sphincter muscles- mediate the closing of oesophagus when food is not present, do not allow the passed food material to move backward, do not allow the content of stomach to move to the oesophagus.
Pylorus sphincter muscle- do not allow the food material to enter into stomach from deudenum.
Ileocecal sphincter muscle- do not allow the colonic content to move back into the ileum.
Sphincter of Oddi- control the secretions from liver, pancreas and gall bladder.

b)Gastric sphincters and anal sphincters

Gastric sphincter is located after the stomach and before deodenum
Anal sphincter is located at the end of anus

REGARDS

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Similar questions

Column I	Column II
A. Sphincter of ani internus	1. Opening of hepatopancreatic duct into duodenum.
B. Cardiac sphincter	2. Between duodenum and posterior stomach.
C. Sphincter of Oddi	3. Guarding the terminal part of alimentary canal.
D. Ileocaecal	4. Between oesophagus and anterior stomach.
E. Pyloric sphincter	5. Between small intestine and bowel.

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