THE ARTERIES. 



Fig. 370. 



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DISTRIBUTION OF THE EXTERNAL AND INTERNAL ILIAC ARTERIES IN THE MARE. 



1, Posterior aorta; 2, internal iliac artery; 3, common origin of the internal pudic and tha 

 umbilical arteries (the latter is cut) ; 4, internal pudic artery ; 5, vaginal artery ; 6, lateral 

 sacral artery; 7. origin of the gluteal artery, which arises in this instance from the lateral 

 sacral — a circumstance most frequently observed in the Ass; 8, origin of the ilio-lumbar artery; 

 9, origin of the iliaco-femoral artery; 10, obturator artery; 11, external iliac artery; 12, 

 circumflex iliac artery (cut); 13, femoral artery; 14, common origin of the deep femoral and 

 prepubic arteries; 15, origm of the anterior great muscular artery; 16, origin of the saphena 

 artery (cut); 17, innominate branch; 18, popliteal artery; 19, femoro-j)opliteal ; 20, satellite 

 artery of the great femoro-popliteal nerve: 21, posterior tibial artery; 22, its communicating 

 branch with the saphena; 23, external plantar artery; 24, satellite artery of the internal plantar 

 nerve ; 25, digital artery. 



I 



