Q. Once the undigested and unabsorbed substances enter the caecum, their backflow is prevented by-
A) Pyloric sphincter
B) Sphincter of Oddi
C) Ileo-caecal valve
D) Gastro-oesophageal sphincter
Explanation
[Solution from source] The ileo-caecal valve prevents backflow of faecal matter from the caecum into the ileum. Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.