THE FROG 



61 



lect blood from the fore limbs by means of the brachial, and from the 

 side of the body and head by means of the musculocutaneous veins. The 

 posterior vena cava receives blood from the liver by means of two hepatic 



jug.inl 



pultn 



port .Hep 



Fig. 14. The Venous System of the Frog. 



abd., Abdominal vein ; br., brachial vein ; card., cardiac vein ; cav.i., post caval 

 vein ; cav.s., precaval vein ; cut.m., musculo-cutaneous vein ; d., intestine ; d., lumb.. 

 dorso-lumbar veins ; f.sin., opening between sinus venosus and auricle ; h, liver ; 

 hep., hepatic vein ; il., iliac or femoral vein ; tt.tr., transverse iliac vein ; leb., liver ; 

 Ing., lung; nr., kidney; pelv., pelvic vein; port.hep., hepatic portal vein; port.ren., 

 renal portal vein ; pulm., pulmonary vein ; ren., renal vein ; sc., sciatic vein ; test., 

 testis ; ves., vesicle veins. (After Meissner.) 



veins, from the kidneys by means of four to six pairs of renal veins, and 

 from the reproductive organs by means of spermatic or ovarian veins. 



"The veins which carry blood to the kidneys constitute the renal- 

 portal ( ) system. The renal-portal vein receives 



