INFERIOR MESENTERIC ARTERY. 



339 



lies in front of the vena cava, and both vessels are accompanied by 

 their corresponding veins and by the spermatic plexuses of nerves. 



Fig. 125.* 



* The distribution and branches of the inferior mesenteric artery. 1,1. The 

 superior mesenteric artery, with its branches and the small intestines turned 

 over to the right side. 2. The caecum and appendix cseci. 3. The ascending 

 colon. 4. The transverse colon raised upwards. 5. The descending colon. 

 6. Its sigmoid flexure. 7. The rectum. 8. The aorta. 9. The inferior mesen- 

 teric artery. 10. The colica sinistra, inosculating with, 11, the colica media, a 

 branch of the superior mesenteric artery. 12, 12. Sigmoid branches. 13. The 

 superior hsemorrhoidal artery. 14. The pancreas. 15. The descending portion 

 of the duodenum. 



