where does the jejunum end and the ileum begin
Jejunum The jejunum lies between the duodenum and the ileum. The jejunum is considered to begin at the attachment of the suspensory muscle of the duodenum to the duodenum, a location called the duodenojejunal flexure.[4] The division between the jejunum and ileum is not anatomically distinct.[5] In adult humans, the small intestine is usually 6-7m long, about two-fifths of which (2.5 m) is the jejunum.[4]
Alonso Álvarez de Pineda
Stomach In classical anatomy, the human stomach is divided into four sections, beginning at the gastric cardia,[6] each of which has different cells and functions.
Marcus Álvarez