XIII 



PHYLUM CHORDATA 



281 



The blood from the front part of the hind -leg is brought back 

 by ^ femoral vein (fin.) which, on reaching the ccelome, divides into 

 two branches, a dorsal and a ventral. The dorsal branch is the 

 renal portal vein (rn. pt.} : it receives the sciatic vein (sc.) from the 



rn.pl 



pv 



Fir;. 933. Rana texnporaria. The venous system with the heart, lungs, liver, kidneys, and 

 right testis, from the dorsal aspect, add. abdominal vein ; br. brachial vein ; cd. cardiac 

 vein ; ''.s 1 Imb. dorso-lumbar vein ; du. duodenal vein ; ext. ju, external jugular vein ; fm. 

 femoral vein ; <js. gastric vein ; hp. hepatic vein ; hp. pt. hepatic portal vein ; int. intestinal 

 veins ; int. ju. internal jugular vein ; kd. kidney ; 1. au. left auricle ; Ing. lung ; Ivr. liver ; 

 ?nx. cu. musculo-cutaneous vein ; pr. cv. precaval vein ; pt. cr. pdftcaval vein ; pul. pulmonary 

 vein ; pv. pelvic vein ; r. aw. right .auricle ; rn. renal veins ; rn. pt. renal portal vein ; 

 sr. sciatic vein ; spl. splenic vein ; spm. spermatic vein ; s. v. sinus venosus ; ts. testis ; 

 ves. vesical veins. 



back of the leg and passes to the kidney, in which it breaks up into 

 capillaries. The ventral branch is the pelvic vein (pv.) : it unites 

 with its fellow of the opposite side to form the abdominal vein 



