ABDOMINAL CAVITY 



3 2 3 



springs from the left side of the front of the abdominal aorta, 

 about 37.5 mm. (an inch and a half) above its termination. 

 It descends, with a slight inclination to the left, to the brim 

 of the pelvis minor, where it crosses the left common iliac 



VERMIFORM 

 PROCESS 



ILEUM 



FIG. 149. Dissection of the Inferior Mesenteric Artery 



artery and becomes the superior hamorrhoidal artery, which 

 descends into the pelvis minor. Before the inferior mesen- 

 teric artery reaches the left common iliac artery it gives off 

 the left colic and the sigmoid branches. 



Arteria Colica Sinistra. The left colic artery runs to 

 the left and divides into two branches, of which one ascends, 



II21 a 



