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Question

Gastro-oesophageal sphincter is present between:

A
Oesophagus and stomach
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B
Stomach and duodenum
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C
Duodenum and pancreas
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D
Duodenum and jejunum
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Solution

The correct option is A Oesophagus and stomach
The oral cavity leads into a short pharynx present in the neck region, where the oesophagus originates. The oesophagus is a thin, long tube which passes through the neck, chest region and diaphragm, and leads to a ‘J’-shaped bag-like structure called the stomach. The muscular gastro-oesophageal sphincter regulates the opening of the oesophagus into the stomach. The bulk of the digestion begins here.

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