308 



THE MUSCLES OF THE OX 



IV. INTERNAL MUSCLES OF THE THIGH 



The sartorius arises by two heads, one from the tendon of the psoas minor 

 and the ihac fascia, the other from the shaft of the ihum. The femoral vessels 

 pass between them. 



The gracilis is more extensively united with its fellow than in the horse. 



The pectineus is large, and arises by a single head from the pubic crest and 



Fig. 221. — Left Tarsus of Ox with Syno- 

 vial Sheaths and Burs.e Injected, 

 External View. 



1 , Peroneus tertius; 1' , tendon of 1 and 

 its sheath, /"; 2, extensor digiti tertii pro- 

 prius; £' , tendon of 2; 2", common sheath of 

 tendons of extensor digiti tertii and extensor 

 (ligitalis longus (3, 3'); 4< peroneus longus and 

 its sheath, 4' ! 5, extensor digiti (juarti and its 

 slieath, f>' ; 6, tendon of gastrocnemivis; 7, 

 superficial digital flexor and its sheath, 7'; 

 8, tendon of tiliialis anterior; u, tibia; b, proxi- 

 mal annular ligament; c, tarsus; d, distal an- 

 nular ligament; e, metatarsus; /, external 

 lateral ligament. (After Schmidfchen.) 



Fig. 222. — Left Tarsds of Ox with Synovial Sheaths and 

 BuRS.E Injected, Internal View. 

 1, Peroneus tertius; 2, tendon of tibialis anterior with 

 sheath, 2' , and bursa, 2" ; 3, long digital flexor and 3', its sheath; 

 4, tibialis posterior; 5, deep digital flexor and its sheath, 5'; 6, 

 tendon of gastrocnemius and bursa, 6' ; 7, superficial digital flexor 

 and its sheath, 7' ; S, subcutaneous bursa; a, tibia; 6, proximal 

 annular ligament; c, tarsus; d, metatarsus. (After Schmidtchen.) 



prepubic tendon. It divides into two branches, one of which is inserted as in the 

 horse, while the otlier extends to the internal epicondyle of the femur. 



The adductor resembles that of the horse, but does not reach to the internal 

 condyle. 



Th(^ quadratus femoris and obturator externus resemble those of the horse. 



The obturator internus arises from the ischium only, and its tendon passes 

 through the obturator foramen. 



The gemellus is large. 



