Point along the
rate of the
gastrointestinal tract where the
duodenum ends and the
jejunum begins; occurs approximately at the level of the L2 vertebra, 2-3 cm to the
left of the midline; generally takes the
form of an
acute angle, the duodenojejunal flexure, and is supported by the
attachment of the suspensory
muscle (ligament) of the duodenum.