40 THOMAS mvionT ox 



Lower Extremity. 



Gluteus maximum. Origin as usually described, including a thick portion from 

 the tuberosity of the ischium. It is inserted into the fascia lata, into the gluteal 

 I'idge and back of the femur quite down to the external condjde and joining the 

 tendon of the biceps at the knee. This is a somewhat lower insertion than is 

 usually described. 



No separate tensor vaginae femor'is. A small one is usually found. 



Scansorius arises from the anterior border of the ilium and is inserted in 

 common with the gluteus minimus. 



Pyrlformls inseparably connected with gluteus medius. 



Gemellus siqjerior, broad; gemellus inferior, small. 



Quadratus femoris. A small muscle, arising from the front of the tuberosity of 

 the ischium, runs to the posterior intertrochanteric line, reaching lesser trochanter. 

 (T do not find Hepburn's vertical part.) 



Biceps femoris. Has the two parts distinct. Tlie ischial portion goes to the 

 head of the libula, sends an expansion to the front of the external tuberosity of 

 the tibia, and is connected with the sural fascia. The femoral portion runs to tlie 

 head of the fibula and to the fascia of the calf. 



(c^uadriceps extensor, differing from that of " Sally,'' is easily separable into 

 four parts. The vastus internus overlaps the cruraeus from which it is much more 

 distinct than is the vastus externus. Rectus has bt)th heads. 



Gracilis seems three or four times as strong as sartorius ; they botli end in 

 broad expansions which are inserted more than one third and one half way down the 

 leg, respectively. 



Adductor group is very puzzling. 



Pectineus is small, but distinct. 



Adductor magnus arises from the tuberosity of the ischium and runs down 

 as a thick round belly to the adductor tubercle. This seems to be the whole mus- 

 cle, being perfectly distinct. The femoral artery passes back between it and the 

 muscle now to be mentioned, to become the popliteal. This is an extremely thick 

 and strong muscuhir mass arising from the front of the pubes and from the pubic 

 arch and running to the linea aspera. Separate muscles are not to be made out. 1 

 recognized no adductor longus nor hrevis. It represents all the adductors of human 

 anatomy except the vertical portion of the adductor magnus. This division of the 

 adductor magnus into two parts is noimal in the chimpanzee, but the fusion of one 



