An atlas of human anatomy for students and physicians . nding colon from the transverse colon is lacking. The ascending mesocolon combineswith the transverse mesocolon and the mesentery of the sinall intestine to form a freely movablecommon mesentery, which corresponds to the mesentery of the primitive umbilical loop of theintestine {see Fig. 750 on page 451, and note ^ to thai page). In the right half of the lower partof the abdominal cavity the primary parietal peritoneum remains exposed ; whereas in the left halfthe parietal peritoneum is, as is normally the case, represented by the anterio
An atlas of human anatomy for students and physicians . nding colon from the transverse colon is lacking. The ascending mesocolon combineswith the transverse mesocolon and the mesentery of the sinall intestine to form a freely movablecommon mesentery, which corresponds to the mesentery of the primitive umbilical loop of theintestine {see Fig. 750 on page 451, and note ^ to thai page). In the right half of the lower partof the abdominal cavity the primary parietal peritoneum remains exposed ; whereas in the left halfthe parietal peritoneum is, as is normally the case, represented by the anterior layer of theadherent descending mesocolon {see note ^ above). Peritonaeum—Peritoneum.—Mesenterium—Mesentery. 454 ABDOMINAL AND PELVIC PORTIONS OF THE DIGESTIVE ORGANS Transverse colon __ ( -^A\^ Colon trans\erstim ^ ^ O^--Vr-!5*^ir; Transverse mesocolon ^ ^ >J^a vv ^Mesocolon trans\ersum ~ ^^^>^*«^ Duodenojejunal flexure (Flexura duodenojejuna \. \\ Duodenojejunal fold1 lita duodencjt-jiimhs Line of attachment of thetransverse mesocolon. Splenc flexure of the colon ~1 lexiira coli sinistra Inferior mesenteric vein \ mes nterica interior- Anastomotic branch from the left colic to the middle colic artery Duodenojejunal fossa RecebbUi duodenojejunalis ?Descending mesocolon *MebOcolon descendens Duodenomesocolic fold 1 lica duodenomcsocolica Root of the mesenteryRadix mebenterii Fig. 757.—Recessus Duodenojejunalis, Duodenojejunal Fossa.^ The transverse colon has been turned upwards ; the jejunum and ileum have been pushed as far to the right as possible,to expose the duodenojejunal flexure, the lower (posterior) surface of the transverse mesocolon, and the *descendingmesocolon. A sound lias been passed into the lower part of the duodenojejunal fossa {, the inferior duodenalfossa—5tv , tiotc =j, which extends beside the ascending portion of the duodenum for its vvliole length, andis bounded in front by the duodenomesocolic fold (inferior duodenal fold
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