ANATOMY OF THE FROG 



53 



Fig. 9. 



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

 heart is turned forwards to show the sinus venosus. #z, 

 mandibular vein ; /, lingual vein ; _//, internal jugular vein ; 

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

 cutaneous vein ; t^CS, vena cava superior; VC /, inferior 

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

 vein; RA, renal portal vein; He, ramus communicans 

 iliacus; A A V, anterior abdominal vein, formed by the 

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

 circulation is not represented in the figure. 



