NEET Zoology
Introduction To Digestive System
Low Priority
Consistency: 5%
Weightage: 1 / 20 Yrs
High-Yield Trend
1
2023 Questions 1 MCQs
01
PYQ 2023
easy
zoology ID: neet-202
Once the undigested and unabsorbed substances enter the caecum, their backflow is prevented by-
| 1. | Pyloric sphincter | 2. | Sphincter of Oddi |
| 3. | Ileo - caecal valve | 4. | Gastro-oesophageal sphincter |
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