PHYLUM CHORDATA 



281 



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

 by a. femoral vein (fm.) which, on reaching the coelome, divides into 

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

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



«/V» 



Fig. 933. — Rana temporaria. The venous system, with, the heart, lungs, liver, kidneys, and 

 right testis, from the dorsal aspect, abd. abdominal vein ; hr. brachial vein ; cd. cardiac 

 vein ; ds Imb. dorso-liimbar vein ; du. duodenal vein ; ext. ju. external jugular vein ; fm. 

 femoral vein ; gs, gastric vein ; hp. hepatic vein ; hp. pt. hepatic jDortal vein ; int. intestinal 

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

 ms. cu. muaculo-cutaneous vein ; pr. cv. precaval vein ; pt. cv. postcaval vein ; pul. pulmonary 

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

 8c. 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 



