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cecum
The cecum or caecum (, plural ceca ; from the Latin ''caecus'' meaning blind) is an intraperitoneal pouch, that is considered to be the beginning of the large intestine. It receives chyme from the ileum, and connects to the ascending colon of the large intestine. It is separated from the ileum by the ileocecal valve (ICV) or Bauhin's valve. It is also separated from the colon by the cecocolic junction. The appendix is connected to the cecum. While the cecum is usually intraperitoneal, the ascending colon is retroperitoneal.〔http://download.videohelp.com/vitualis/med/large_intestine.htm〕
In herbivores, the cecum stores food material where bacteria are able to break down the cellulose. This function no longer occurs in the human cecum (see appendix), so in humans it is simply a dead-end pouch forming a part of the large intestine.
==Structure==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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