AND PHYSIOLOGY. 



213 



ities. These are the com- FlG - 216 * 



mon iliacs, from being near 

 the ilium, and each of them 

 soon subdivides into the Ex- 

 ternal and Internal Iliac, the 

 former of which supplies the 

 greater portion of the leg 

 with blood. As soon as it 

 passes over the pubis it be- 

 comes the Femoral Artery, 

 "which at first is quite exter- 

 nal, lying just beneath the 

 skin and upon the pubis ; but 

 as it passes down the femur it 

 plunges deeper and deeper into 

 the soft parts until it appears 

 behind the knee, where it re- 

 ceives the name of the Pop- 

 liteal Artery. This is only a 

 few inches in length, and at 

 the upper extremity of the 

 tibia divides into the Anterior 

 and Posterior Tibial Arteries. 

 The former runs along the 

 inner side of the tibia and 

 over the tarsal bones, until it 

 reaches the metatarsus, when 

 it becomes the Dorsalis Pedis, 

 which gives off branches to 



Lower End of the same Artery on the Popliteus Muscle. 3, Point of Bifurcation into tho 

 Posterior Tibial and Peroneal. 4, Superior Internal Articular Artery. 5, Superior Ex- 

 ternal Articular Artery. 6, Middle Articular Artery. 7, Inferior Internal Articular Ar- 

 tery. 8, Inferior External Articular Artery. 9, Branch to the Head of the Soleus Mus- 

 cle. 10, Origin of the Anterior Tibial Artery. 11, Origin of the Posterior Tibial Artery. 



12, Point where it passes behind the Annular Ligament to become the Plantar. 13, 14, 

 15, Muscular Branches. 1G, Origin of the Peroneal Artery. 17, 17, Muscular Branches. 



13, IS, Anastomosis of the Posterior Tibial and Peroneal Arteries near tho Heel. 19, 

 Muscular Branch from the Anterior Tibial. 



A View of the Arteries on the Back of 

 the Leg. The Muscles have been removed 

 so as to display the Vessels in their whole 

 length. 1, The Popliteal Artery, cut off 

 so as to show the Articular Arteries. 2» 



375. What do the common Iliac Arteries become as soon as they cross the pubis? 

 Give the location of the Femoral, Popliteal, Tibial, and Dorsalu Tedis Artery. 



