ANATOMY OF THE FROG 



53 



Fig. 9. 



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

 heart is turned forwards to show the sinus venosus. m^ 

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

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

 cutaneous vein ; VC S, vena cava superior ; VC I, inferior 

 vena cava ; H, hepatic veins ; P, femoral vein ; Sc, sciatic 

 vein; RA, renal portal vein;.?Vc, ramus communicans 

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

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

 circulation is not represented in the figure. 



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