Neck and Internal Organs (9781604062892) by Schuenke Michael; Schulte Erik

Author:Schuenke, Michael; Schulte, Erik
Language: eng
Format: epub
Publisher: Thieme Medical Pub

B Parts of the duodenum

Anterior view. The anatomical parts of the duodenum (partes superior, descendens, inferior or horizontalis and ascendens with intervening flexures) have a total length of approximately 12 fingerwidths (L. duodeni = “twelve at a time”).

Note the lig. suspensorium duodeni (called also the ligament of Treitz), which often contains smooth-muscle fibers. Mobile loops of small intestine may wrap around this ligament and become entrapped between the ligament and the vessels behind it (most notably the aorta abdominalis). This “Treitz's hernia” may cause mechanical obstruction of the affected bowel loop and strangulate its blood supply.

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