28 C. W. M. Poyntcr 



.(1904), Rossi (1904), Broman (1905), Budde (1906), Leriche (1907), 

 Susloff (1907), Kuss (1909), Piquand (1909), Branco (1912), Lipschutz 

 (1917). 



A. Me sent erica Superior 



As already stated, the superior mesenteric artery should be con- 

 sidered developmentally as a part of the cceliac complex, conse- 

 quently its anomalies are largely connected with that artery and 

 have already been referred to, particularly under the hepatic. Its 

 connection with the omphalo-mesenteric was observed by Haller 

 (1747). The artery may arise entirely from the coeliac or may 

 have a persistent root from it. I have encountered this condition 

 4 times, Barclay (1812), Tiedemann (1846), Cavasse (1856), 

 Streets (1872), Struthers (1892), Jacques (1895), Franz (1896), 

 Biihler (1904), Rossi (1904), Tandler (1904), Brunin (1905), 

 Leriche (1907), Sussloff (1907). 



A connection may be established with the inferior mesenteric by 

 which the colica sinistra becomes a branch of the superior, Dubrueil 

 (1847), Fleischmann (1815) ; or the colica media may spring from 

 the splenic, Davies (1873). 



A. Me sent erica Inferior 



This artery has apparently not been carefully observed, for there 

 is scant reference to it in literature ; it seems, however, to be a very 

 stable branch. Cavasse (1856) saw an accessory hepatic as one 

 of its branches and occasionally it furnishes renal branches. Vicq 

 D Azyr (1776) noted the absence of a connection between the 

 colica media and sinistra. I have seen one case in which the colica 

 media was derived from it as a large branch arising near its origin. 



A. Suprarenalis 



A very complete study of these arteries was made by Gerard 

 (1913). He found that the inferior suprarenal usually springs 

 from the renal, but it may be associated with an accessory renal or 

 with the inferior phrenic, or with the spermatic. It is not infre- 

 quently multiple. Gerard recognized a middle capsular artery 

 which arose from the aorta in 85 per cent, of the series. 



The superior suprarenal is frequently multiple; it has been re- 



