See also: Colonist
The colon is since the Cæcum until the Rectum a topographic part of the large intestine, pertaining to the digestive system. It makes following the Iléon, part final of the Small intestine . It lays out out of framework in the abdominal cavity.
SubdivisionsThe colon is composed of several segments, with starting from the Iléon:
- the cæcum
- the ascending colon or right colon
- the transverse colon
- the colon going down or left colon
- the sigmoid colon
Role in digestionThe role of the colon is the Absorption of the Eau of the not digested matters. On the level of the colon, the pH varies between the normal limits of 4,5 and 7,5 in the adult.
DiseasesThe colon can be the seat of several diseases:
Angiodysplasie of the colon
- Cancer of the colon
- Disease of Crohn
- Disease of Hirschsprung (aganglionose)
- Colitis (Ignition of the colon in general)
- Polypose (see also Polyp)
- pseudo-membranous Colitis
- ulcerating Colitis and toxic Mégacôlon
- irritable Colon (spastic colon)
- hemorrhagic Rectocolite
SurgeryThe surgical operation which consists of the ablation of this body is the Colectomie. It can relate to all the colon (= total colectomy), the right colon (= right hemicolectomy), the left colon (= left hemicolectomy), or a segment of the colon (= segmentary colectomy). It can be concluded by an artificial anus or colostomy, or by an anastomosis (= seam) between iléon and colon; or colon and rectum.
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