gluteus medius s''"^"' maximus coccygeofemoralis pars femoralis 



vastus pars lateralis 

 pars intermedi 



biceps femoris 

 semitendinosus 

 quadratus femoris 



Figure 14-8. Dorsal (outer) musculature of the hip of the cat. A, hip seen in lateral view; B, lateral 

 view with coudofemoralis and biceps femoris reflexed; C, deeper muscles of hip joint; D, relation- 

 ships of obturator muscles to pelvic girdle as seen in lateral view. 



tendon which inserts on the greater trochanter. Anterior to 

 the tendon of the internus is the gamellus inferior which 

 arises from the pelvis, above the acetabulum, the socket for 

 the head of the femur. Anterior to, and below, the inferior 

 is an indistinct gamellus superior. 



The extrinsic muscles of the internal aspect of the thigh 

 are several (Figure 14-9). Anteriorly there is the broad 



sartorius, posteriorly the sheet-like gracilis. Section of these 

 two muscles reveals, from front to back, the rectus femoris 

 clasped between the vastus lateralis and vastus medialis, 

 the insertion end of the "iliopsoas," the pectineus, the ad- 

 ductor longus, the adductor magnus (or femoralis), the 

 semimembranosus, and the semitendinosus. 



Followed into the body cavity, the "iliopsoas" is seen to 



SKELETAL MUSCULATURE 



429 



