Caecum
Caecum
Caecum (pronounced: SEE-kum) is a pouch-like structure of the digestive system, forming the first part of the large intestine. It is located at the junction of the small and large intestines.
Etymology
The term "caecum" originates from the Latin word "caecus" meaning "blind", referring to the 'blind-ended' structure of the pouch.
Anatomy
The caecum is a pouch that receives undigested food material from the ileum, and continues to the colon. It is separated from the ileum by the ileocecal valve (ICV), which prevents the backflow of contents from the caecum back into the ileum. The appendix is a small, tube-like structure attached to the caecum.
Function
The primary function of the caecum is to absorb fluids and salts that remain after completion of intestinal digestion and absorption and to mix its contents with a lubricating substance, mucus. The caecum and the appendix also play a role in the immune response.
Related Terms
- Ileum: The final section of the small intestine
- Colon: The largest section of the large intestine
- Ileocecal valve: The sphincter muscle situated at the junction of the ileum and the caecum
- Appendix: A small, tube-like structure attached to the caecum
External links
- Medical encyclopedia article on Caecum
- Wikipedia's article - Caecum
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