Cecum Definition

Cecum is the first segment of the colon (large intestine) into which the ileum, the final segment of the small intestine, empties digestive matter.

It is a pouchlike structure located in the lower right abdomen that absorbs water from the waste, returning fluid to the body and consolidating the waste for its journey through the end stage of digestion.

The rhythmic contractions of peristalsis move the remaining solid waste into the remainder of the colon. the appendix extends from the bottom of the cecum.

For further discussion within the context of gastrointestinal structure and function, please see the overview section “The Gastrointestinal System.”


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