

i r developed than the more c= : iore 



it the liv :s purer blood than any other part of the body, and th 



doubtedly correlated with the relatively enormous 'size of that organ in the 

 tus.it The rather impure blood which starts through the dorsal aorta is in 

 rt di body walls, and lower extremities by the visceral 



: lal arteries, and thence is collected by the branches of the portal 

 >.d inferior vena cava to be returned as impure blood to the umbilical 

 I at the liver; in part it is carried by the umbilical arteries to the placenta, 

 re to be purified and collected by the branches of the umbilical vein 

 . 24 





Ant. part of body 



Carotii 

 subclavian ,. 



;. Diag ]^ | -^U^K*nmr>a.re v . The 



'jlood, The white being 







form 'the round ligament of . : i.- L'-. 



. 



lion is still t .the po; 



I 

 hat from the superior right ati ' 



! 



