54 DISSECTION OF THE VASCULAR SYSTEM. 



correspond to the external pudic, beino;- distributed to 

 the external i^enital organs. This arrangement is dif- 

 ferent from that in man. 



The second chief division of the internal iliac, the 

 sciatic, after giving off two large branches, t\\Q gluteals ^ 

 which supply the muscles on the back of the pelvis, 

 passes along with the sciatic nerve through the sacro- 

 sciatic foramen to reach the exterior of the pelvis, 

 where it is distributed chiefly to muscles. 



12. The External Iliacs pass beneath Poupart's liga- 

 ment to reach the front of the thigh, where they are 

 known as the femoral arteries. Before leaving the 

 abdomen each gives off a large branch, which seems 

 to have no homologue in human anatomy. This 

 branch in turn gives off one or two branches, the 

 epigastric artery, which is distributed to the muscles 

 of the anterior abdominal wall, and then passes be- 

 neath Poupart's ligament to reach the inner portion 

 of the thigh, where it is distributed chiefly to the large 

 adductor muscles. 



13. The Femoral Artery runs for some distance just 

 below the sartorius muscle, giving off several 

 branches to the muscles, and one long branch, the 

 sapJicii02is artery, which passes to the leg, lying 

 below the skin. The femoral next bends sharply 

 inward to reach the back of the knee-joint, where it is 

 named the popliteal artery; this divides into two 

 branches, one rather large which passes into the leg 

 between the tibia and fibula, and finally reaches the 

 front of the leg. It corresponds to the anterior tibial 

 of human anatomy, and may be followed down upon 

 the dorsum of the foot. The second, smaller division 

 sends branches to the lower portions of the muscles 



