MUSCLES OF THE HIND LIMB. 



101 



passes throug'li a slit in the adductor magnus, and so affords this 

 muscle another point o£ origin; then backwards between the 

 adductor magnum and the rectus internus vmjor and under the lower 

 third of the thig-li^ and unites with the posterior head of origin. The 

 muscle so formed passes into a thin tendon, and, together with that 

 of the sartorius, forms an aponeurotic arch, connected with the fascia 

 of the leg, under which the tendons of the rectus internus major and 

 minor pass. 



(C.) Deep muscles of the thigh. 



To these, in addition to the adductor Ij revis, pectineus, and the 

 portion of the bice_[)S already described, belong also the following : 



124. M. ilio-psoas (Figs. 83, 83, 84 ip). 



Dugès, intra-ilio-fémoral (^ = iliacus and ysoas). — Cuvier, Zenker, 

 Klein, iliacus internus. 



The fibres of this muscle take a broad origin from the pelvic 

 surface of the ilium, pass outwards over the lower margin of the 



Fiff. 8: 



Left half of pelvis of Rana escii- 

 lenta. Tliigli turned forwards 

 under the abdomen. 



(ll M. glutaeus. 

 og M. obturatorius. 



bone and form a flat muscle with its apex pointed posteriorly. It 

 crosses the hip-joint between the m. rectus and vastus ititernus, 



