Topic: Frog: digestive, circulatory, respiratory, nervous and reproductive systems· Structural Organisation in Animals and Plants

Which of the following guards the opening of hepatopancreatic duct into the duodenum ?

1. Semilunar valve

2. Ileocaecal valve

3. Pyloric sphincter

4. Sphincter of Oddi

Doubtly Asked 30 Oct 2026 NEET UG 2016 Phase 1 neet Save WhatsApp Report

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Answer: 4. Sphincter of Oddi

The sphincter of Oddi guards the opening of the hepatopancreatic duct into the duodenum. The pyloric sphincter lies between stomach and duodenum, the ileocaecal valve between ileum and caecum, and semilunar valves are in the heart.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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Which of the following guards the opening of hepatopancreatic duct into the duodenum ?

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