The anatomist's vade mecum : a system of human anatomy . in number, andare distributed to the small intestine from the duodenum to the ter-mination of the ileum. In their course between the layers of themesentery, they form a series of arches by the inosculation of theirlarger branches; from these are developed secondary arches, and fromthe latter a third series of arches, from which the branches arisewhich are distributed to the coats of the intestine. From the middlebranches a fourth and sometimes even a fifth series of arches is pro-duced. By means of these arches a direct communication is
The anatomist's vade mecum : a system of human anatomy . in number, andare distributed to the small intestine from the duodenum to the ter-mination of the ileum. In their course between the layers of themesentery, they form a series of arches by the inosculation of theirlarger branches; from these are developed secondary arches, and fromthe latter a third series of arches, from which the branches arisewhich are distributed to the coats of the intestine. From the middlebranches a fourth and sometimes even a fifth series of arches is pro-duced. By means of these arches a direct communication is established 336 SUPERIOR MESENTERIC ARTERY. between all the branclies given off from the convexity of the superiormesenteric artery; a superior branch {inferior pancreatico-duode7ialis)supplies the pancreas and duodenum, and inosculates with thepancreatico-duodenalis; and the inferior unites with the ileo-colica. The Ileo-colic artery is the last branch given off from the con-cavity of the superior mesenteric. It descends to the right iliac Fig. 127.*. * The course and distribution of the superior mesenteric artery. 1. Thedescending portion of the duodenum. 2. The transverse portion. 3. Thepancreas. 4. The jejunum. 5. The ileum. 6. The csecum, from which theappendix vermiformis is seen projecting. 7. The ascending colon. 8. Thetransverse colon. 9. The commencement of the descending colon. 10. Thesuperior mesenteric artery. 11. The colica media. 12. The branch whichinoscTilates with the colica sinistra. 13. The branch of the superior mesen-teric artery, which inosculates with the pancreatico-duodenalis. 14. Thecolica dextra. 15. The ileo-colica, 16, 16. The branches from the con-vexity of the superior mesenteric to the small intestines. INFERIOR MESENTERIC ARTERY. 33? fossa, and divides into brandies which communicate and form arches,from which branches are distributed to the termination of the ileum,the csecum, and the commencement of the colon. This artery in-osculates on the
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