ANATOMY OF THE FROG 



53 



Fig. 9. 



Diagram of the venous system of the Frog. The apex of the 

 heart is turned forward to show the sinus venosus. /, 

 mandibular veih ; /, lingual vein ; //', internal jugular vein ; 

 S.sc, subscapular vein ; Br t brachial vein ; C t musculo- 

 cutaneous vein ; KC-V, vena cava superior ; 1'CI, inferior 

 vena cava ; //, hepatic veins ; /'', femoral vein ; Sc, sciatic 

 vein; A'.?, renal portal vein; tie, ramus communicans 

 iliacus ; A A I', anterior abdomiml vein, formed by the 

 union of two pelvic veins ; /', portal vein. The pulmonary 

 circulation is not represented in the figure. 



