Anatomy - Right hemicolectomy, laparoscopically assisted

Anatomy - Right hemicolectomy, laparoscopically assisted - general and visceral surgery

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Surgically relevant anatomy
Hepatic flexure and right hemicolon
Ascending colon
Cecum with vermiform appendix
Transverse colon
Synonym: Colon transversum
Location: Intraperitoneal; mobile fixation via its own mesentery - transverse mesocolon.
Identification: By the so-called
taeniae = taeniae coli = condensations of longitudinal muscle fibers named according to their anatomical relations as
taenia libera (inferior)
taenia omentalis (greater omentum)
taenia mesocolica (transverse mesocolon)
omental appendices = fat-filled tunica serosa
Haustrae of colon = haustrae coli = visible sacculations in the wall of the colon wall by the arrangement of the circular muscle fibers (plicae semilunares; evident on endoscopy) which are discernible on the outer wall as crescentic folds.
Ascending colon
Definition: Section of the large bowel from the ileocecal valve, where the small intestine (ileum) enters the colon, to the hepatic (right) flexure.
Synonym: Colon ascendens
Location: secondary] retroperitoneal - peritoneal fixation to the posterior abdominal wall by the so-called Toldt membrane
Identification: By the longitudinal bundles of muscle fibers- the taeniae, which keep their location-related terminology from the transverse colon; the diameter is markedly larger than that of the descending colon!
Cecum
Definition: cul-de sacbeginning of the ascending colon corresponding with a bulge thereof; Latin: caecus = blind
Synonym: Blind gut
Location: Inferior to the ileocecal valve
Identification: By the taeniae and vermiform appendix