Question

Gastro-oesophageal sphincter is present between:

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

Answer 1

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.