THE LI MP.S OF THE HORSE 



99 



some fibres in addition springing from the tendinous origin of the 

 gracilis. Its insertion is to the posterior surface of the femur, from 

 near the third trochanter to the medial epicondyle, and to the medial 

 collateral ligament of the femoro- tibial joint. Sometimes fibres are 



N. obturatorius. 



Obturator vessels. 



M. obturator interims. 



Symphysis of ischium. 



A. iliaca externa. 

 A', iliaca externa. 



Truncus pudendo- 

 epigastricus. 



X. femoralis. 

 A. profunda femoris. 



Lig. accessorium. 

 Anterior femoral vessels, 



N. saphenus! 



Femoral artery and vein. 



A. saphena. 



M. rectus femoris. 



M. vastus medialis. 



A- uenu suprema. 



11. adductor. 



V. pudenda externa. 



-jp— Depression for root of 

 J? / penis 



— -M. pectineus. 



Nerve to m. gracilis. 



M. semimembranosus. 



M. semitendinosus. 

 M. gastrocnemius. 

 M. popliteus. 



Fig. 66. —Dissection of the Medial Aspect of the Thigh after Removal of the Sartorius 

 and Gracilis Muscles. (Male. ) 



continued to the tibia itself. Distal to the middle of the femur, i.e. 

 immediately distal to the insertion of the pectineus, the insertion is 

 pierced by the femoral vessels. 



Occasionally the most proximal part of the muscle can be isolated 

 from the rest. If this portion is regarded as equivalent to the m. adductor 

 longus of the human body, the rest of the muscle must be considered as 

 representing the m. adductor brevis and m. adductor magnus. So seldom 



