Q49 / 200 · MHT CET - Medical 2026 (21 April Shift 1) · Biology
Which of the following guards the opening of oesophagus into the stomach ?
- Correct answerACardiac sphincter
- BPyloric sphincter
- CSphincter of Oddi
- DIleocaecal valve
Solution
The opening of the oesophagus into the stomach is guarded by a muscular sphincter called the gastro-oesophageal sphincter or cardiac sphincter.
The pyloric sphincter guards the opening between the stomach and the duodenum.
The sphincter of Oddi guards the opening of the hepatopancreatic duct into the duodenum.
The ileocaecal valve prevents the backflow of faecal matter from the caecum into the ileum.
Answer: Cardiac sphincter
The pyloric sphincter guards the opening between the stomach and the duodenum.
The sphincter of Oddi guards the opening of the hepatopancreatic duct into the duodenum.
The ileocaecal valve prevents the backflow of faecal matter from the caecum into the ileum.
Answer: Cardiac sphincter
Hence, the correct answer is option: 'A'.