The junction between oesophagus and stomach is guarded by sphincter which is also known as the lower oesophageal sphincter.

cardiac

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upper oesophageal

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thoracic

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Solution

The correct option is A cardiac
Sphincter is a cylindrical muscle that normally maintains constriction of a natural body passage or orifice and which relaxes as required by normal physiological functions. Types of sphincters found from mouth till stomach:
Upper oesophageal sphincter: It is present in the junction between laryngeopharynx and oesophagus
Lower oesophageal sphincter: It guards the junction between lower oesophageal sphincter/ cardiac sphincter/ garstroesophageal sphincter.

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Similar questions

Upper oesophageal sphincter is made up of___ and lower oesophageal sphincter of ___.

Q. Digestive System
Match column I with column II and select the correct option from the given codes.

	Column I (Sphincter)		Column II (Location)
A.	Sphincter ani Internus	(i)	Opening of hepatopancreatic ampulla into duodenum
B.	Cardiac sphincter	(ii)	Between duodenum and posterior stomach
C.	Sphincter of Oddi	(iii)	Guarding the terminal part of alimentary canal
D.	Ileocaecal sphincter	(iv)	Between oesophagus and anterior stomach
E.	Pyloric sphincter	(v)	Between small intestine and large intestine

Q. undefined

Match the following sphincters of with their respective location.

$\begin{matrix} C o l u m n I (S p h i n c t e r s) & C o l u m n I I (L o c a t i o n) i . Ileo-cecal Sphincter & a . anus . i i . Anal Sphincter & b . between ileum and Caecum. i i i . Pyloric Sphincter & c . between stomach and small intestine. i v . Lower Esophageal Sphincter & d . between Esophagus and Stomach. \end{matrix}$

Gastro-oesophageal sphincter is present between:

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