. On retro-peritoneal hernia : being the 'Arris and Gale' lectures on the 'The anatomy and surgery of the peritoneal fossae' : delivered at the Royal College of Surgeons of England in 1897. Fig. 24.—Diagram of the Ileo-Colic Artery and its Branches. tions he considers normal. It is founded largely on Jonnes-cos work. As in the latter, a double retro-colic fossa isdescribed. It is impossible to overestimate the confusion in nomen- 1 On the Fossae round the Caecum, etc., Journal of Anatomy andPhysiology^ vol. xxvi.^1892, p. 130. 2 The Crecal Folds and Fossa: and the Topographical Anatomy of theV
. On retro-peritoneal hernia : being the 'Arris and Gale' lectures on the 'The anatomy and surgery of the peritoneal fossae' : delivered at the Royal College of Surgeons of England in 1897. Fig. 24.—Diagram of the Ileo-Colic Artery and its Branches. tions he considers normal. It is founded largely on Jonnes-cos work. As in the latter, a double retro-colic fossa isdescribed. It is impossible to overestimate the confusion in nomen- 1 On the Fossae round the Caecum, etc., Journal of Anatomy andPhysiology^ vol. xxvi.^1892, p. 130. 2 The Crecal Folds and Fossa: and the Topographical Anatomy of theVermiform Appendix, Edinburgh, 1897. THE ILEO-COLIC ARTERY AND ITS BRANCHES Si clature that has arisen in dealing with this comparativelysimple subject. The exuberance of alternative titles is be-wildering. In describing each fold and fossa, that name which isconsidered most suitable is given first, and in all cases mostof the synonyms which have been employed are Fig. 25.—Diagram of the IleoColic Artery and its Branches whenthe Appendicular Artery lies in Front of the Ileum. THE ILEO-COLIC ARTERY AND ITS BRANCHES The ileo-colic artery, as it approaches the angle of junctionof the ileum with the ascending colon, gives off as a rule fivebranches (Fig. 24). The precise mode of origin of thesebranches may vary within considerable limits. Perhaps themost frequent arrangement is for the vessel to divide intotwo main trunks, which subsequently split up, the anteriorinto two, and the posterior into three, branches. The 6 82 THE CMCUM AND VERMIFORM APPENDIX anterior branches are—(i) a branch running to the left alongthe upper border of the ileum, and (2) a branch which con-tinues in the line of the ileo-colic artery over the ileo-colicjunction, and gives branches to the caecum, to the ascendingcolon, and very much smaller twigs to the anterior surfaceof the ileum. In a certain number of cases the largestbranch of this second vessel is a lateral one
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