A muscular structure that regulates the opening of the oesophagus into the stomach is known as

Epiglottis

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Lower esophagus sphincter

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Pyloric sphincter

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Sphincter of Oddi

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Solution

The correct option is B Lower esophagus sphincter
A. The epiglottis is a leaf-shaped cartilaginous flap located behind the tongue. It prevents the entry of food in the windpipe by sealing off the windpipe while eating the food.
B. Lower oesophagus sphincter, also known as a cardiac orifice, is the opening of the oesophagus into the stomach. It regulates the opening of the oesophagus into the stomach.
C. Pyloric sphincter is found between the duodenum and posterior stomach. It regulates the opening of the duodenum into the stomach.
D. Sphincter of Oddi is the opening of the hepatopancreatic duct into the duodenum.
So, the correct answer is 'Lower oesophagus sphincter'.

Suggest Corrections

Similar questions

Consider the following four statements and select the incorrect option, stating the ones that are true (T) and the ones that are false (F) :

I. Upper and Lower Esophageal Sphincters work with opposite peristaltic movements.

II. Entry of food into the stomach from the esophagus is mediated by receptive relaxation..

III. Myenteric plexus and Meissner's plexus help in lubrication of the esophagus.

IV. Failure in regulation of flow by Upper Esophageal Sphincter leads to GERD.

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