544 



AMPHIBIA. 



Superior 

 vena cava. 



fLingual from the mouth and 



tongue. 

 [Mandibular from the lower jaw. 

 flnternal jugular from the inside 

 J of the skull. 



I Subscapular from the back of 

 I the arm and the shoulder, 

 f Brachial from the arm. 

 Subclavian. I Musculocutaneous from the skin 

 \ and sides of the body. 



External 

 jugular. 



Innominate. 



f. sc 

 Fig. 233. — Venous system of frog. — After Ecker. 



?«./., Mandibular and lingual; e.j\, external jugular; i.j\, internal 

 jugular ; s.scp., subscapular ; :'«., innominate ; s.c, subclavian ; 

 ir., brachial; vicu., musculo-cutaneous ; k.v., hepatic vein; 

 h.p.v., hepatic portal ; G., gut ; a.a., anterior abdominal ; ?-./., 

 renal-portal ; p.v., pelvic ; K., kidneys; sc, sciatic \/., femoral ; 

 d.l., dorso-lumbar ; i.v.c, inferior vena cava; v.c, cardiac 

 vein. 



II. The inferior vena cava begins between the kidneys, and 

 ends in the sinus venosus. Its components are as follows : — 

 Infe • (" Efferent renal veins from the kidneys. 



vena cava I ^ en ^ tal vems from tne reproductive organs. 

 [ Efferent hepatic veins from the liver. 



