FATE OF PRIMARY LYMPH-SACS IN ABDOMINAL REGION OF PIG, ETC. 



33 



juxta-aortic glands; on the right side some are prevenous, others retrovenous, in 

 relation to the vena cava (fig. 5). Posterior to the aorta are the prevertebral 

 glands. Glands are formed along the external iliac artery and smaller ones about 

 the internal iliac or hypogastric artery. 



Lymgl. fundi 



LymaJ lien. 

 Lymql cv. min 



Lymql coel. 



Lymql.mes.eup. 

 Lymql juxla-intes 



Lymgl. praeven. 

 Vena Cava 

 Lymfjl.praevert. 



Lyrrigl. i I. COTI. 

 Lyrrigl. ilioing. 



Lymgl juxta-aorlicoe 



Lymql prae-aorficoa 

 Ovorium 



Colon "descendens 



Uterus 



Flo. 6. Composite diagrammatic drawing viewed from the ventral side of a pig embryo 20 cm. 

 long. The glands arising from the retroperitoneal sac are in solid color, those 

 arising from the iliac sacs are stippled. However, the glands along the^vessels 

 posterior to the bifurcation of the aorta, which are in solid black, belong^to.the 

 group arising dorsolateral to the aorta, but were not stippled because of thejper- 

 epective. Drawing made by J. F. Didusch. 



