MUSCLES OF THE PELVIC LIMB 



327 



ischii. The aponeurosis of insertion ends on the patella, the patellar ligament, 

 and the tibial crest. There is also a tendinous band, which comes from the deep 

 face of the muscle and terminates at the tarsus, as in the horse. 



The abductor cruris posterior may be regarded as an accessory head of the 

 biceps femoris. It is a thin, muscular band which arises on the sacro-sciatic 

 ligament, passes downward between the biceps and semimembranosus, and ends by 

 blending with the former. 



The semitendinosus arises from the tuber ischii only. It ends as in the horse. 



Muscles of 



Pelvic 

 View. 



Limb of Dog, Internal 



a, Tlio-psoas; b, tendon of psoas minor; c, sacro-coccy- 

 geus ventralis lateralis; d, coccygeus; e, pyrifonnis; /, obtur- 

 ;itor internus; g, origin of retractor ani; h, h', sartorius; i, rec- 

 tus femoris; k, vastus internus; /, pectineus; m, adductor; 

 11. gracilis; o, semitendinosus; p, semimembranosus; q, gas- 

 trocnemius, inner heail; i/, tendon of gastrocnemius; r, super- 

 lioial digital flexor; r', tendon of r; s, tarsal tendon of biceps 

 femoris; t, popliteus; u. deep digital flexor, outer head tflexor 

 hallucis longus); u', long digital flexor; u'\ common tendon of 

 u and u'; v, tendon of tibialis posterior; w, tibialis anterior; 

 X, tension of anterior or long digital extensor; I, pelvic sur- 

 face of ilium; 2, section of symphysis pelvis; S, tuber ischii; 

 4, internal condyle of femur; 5, ligamentum patella; 6. 7, in- 

 ternal surface of tibia; S, tarsus; S' , fibular tarsal bone; 9, 

 metatarsus. (EUenberger-Baum, Anat. d. Hundes.) 



The semimembranosus is large and arises from the ischium only. It divides 

 into two portions: the anterior portion ends on the tendon of the pectineus, on the 

 femur above the internal condyle, and on the inner (Vesalian) sesamoid bone; 

 the posterior portion ends on the internal condyle of the tibia, the tendon passing 

 under the internal lateral ligament of the stifle joint. 



The rectus femoris has only one tendon of origin. The single patellar ligament 

 acts as the tendon of insertion of the ciuadriceps. 



