MUSCLES OP THE HINDER LIMB, 



95 



on the other, to be inserted Fig. 80. 



into a tubercle (trochanter) 

 of the femur. 



110. M. Pi/riformis (Fig. 



807.). 



Cuvier, pyramidaL — Dugès, 

 coccy-fëmoral, n. 136. 



A narrow, slender muscle, 

 arising- from the apex of the 

 coccjrs; it passes obliquely 

 outwards and backwards to 

 the thigh, to be inserted deep- 

 ly between the m. vastus exter- 

 mis and the biceps, into the in- 

 ner surface of the femur, but 

 towards the ventral surface. 



M. triceps femoris s. exten- 

 sor cruris communis (Fig. 80). 



Dugès, pelvi-fémoro-rotulien, 

 n. 145, 146, 147. 



This is a large, strong 

 muscle, having three heads 

 of origin, and inserted by a 

 tendon into the tibio fibula. 

 The three heads are the caput 

 longum or the rectus femoris 

 anticus (r.a.), the cap7d exter- 

 num or the vastus exterims {v.e}j, 

 and the caput intermim or the 

 vastus interims (Fig. 82 vi) ; of 

 these, the first is situated 

 on the outer border of the 

 thigh, the second on the dor- 

 sal surface, and the third on 

 the ventral surface. 



111. [a.] M. rectus femoris 

 anticîùs (Figs. 80, 82 ra). 



This arises from the under 

 (ventral) surface of the iliac 

 bone about its middle and 

 beneath the m. glntaeus. The muscular belly quickly passes into 



Muscles of left tliigh of Rana esciilenta. Dorsal view. 

 b M. biceps. 



