caecum
- n the cavity in which the large intestine begins and into which the ileum opens
- Fecal matter sometimes slips from the caecum into its narrow opening, or lumen, putrifies there and causes the various forms of appendicitis.
- Water, in the case of the horse, passes almost immediately to the caecum, or "blind gut.
- A dog has no appendix, so is spared the need for an appendectomy, but he has a human-type caecum (a dead-end pouch at a turn in the intestines), which is the favorite hideaway of .