PLATE XVII 



Plate XVII is from a section through the lower third 

 of the first lumbar vertebra. The plane of the section is 2.8 

 cm. anteriorly and 2.7 cm. posteriorly below that of Plate 

 XVI so that the posterior margin is .1 cm. lower than the 

 anterior. 



The left renal vein empties into the vena cava inferior 

 near the surface of the section. Its course is indicated in 

 the plate. It receives the suprarenal vein (62) from above. 



The lower part of the first portion of the duodenum 

 (Dj) is attached to the posterior part of the stomach. The 

 posterior of the two segments marked (Dj) continues 

 downward as the descending duodenum. The last portion 

 of the duodenum (D^) lies to the left of the midline op- 

 posite the first portion. 



io6 



