ioo ELEMENTS OF MAMMALIAN ANATOMY. 



FIG. 51. VENTRAL ASPECT OF MUSCLES OF CAUDAL PORTION OF TRUNK 



AND THIGH. 



a, Transversalis abdominis becoming aponeurotic; adct, adductor mag- 

 nus ; c, pectineus ; ex. ob, external oblique, whose aponeurosis on the 

 left side is removed; /, aponeurosis of external oblique; grc, gracilis 

 with its middle part cut out on the left side ; m, median ventral 

 line ; ps, psoas magnus ; p, penis ; rcf, rectus f emoris ; ret, rectus 

 abdominis ; sar, sartorius with its middle part cut out on the left 

 side ; smb, semimernbranosus ; smt, semitendinosus ; spmc, spermatic 

 cord; t, aponeurosis; trs, internal oblique with a rectangular piece 

 cut out to show the rectus and transversalis ; tvg, tensor vaginae 

 f emoris; ts, testicle; in, vastus internus; x, external abdominal 

 ring. 



FIG. 52. LATERAL ASPECT OF THE MUSCLES OF THE LEG WITH THE 

 GLUTEI, TENSOR VAGINAE FEMORIS, SEMITENDINOSUS, AND BICEPS 

 FEMORIS REMOVED. 



a, Portion of semimernbranosus ; ab, adductor magnus ; b, peroneus ter- 

 tius; c, abductor ossis metatarsi; ct, cut surface of the vastus ex- 

 ternus ; d, peroneus brevis ; eld, extensor longus digitorum ; gas, 

 gastrocnemius ; I, tendinous loop; Ip, annular ligament; It, ex- 

 ternal lateral ligament of the knee-joint; Ig, tendon of the extensor 

 longus digitorum ; o, tendinous arch of the peroneus longus ; oc, 

 os calcis ; pi, peroneus longus ; ret, rectus f emoris ; t, ligamentum 

 patellae ; tr, greater trochanter ; ts, soleus ; tg, tendon of gastro- 

 cnemius; tpl, tendon of the plantaris; ib, tibialis antictis; vex, 

 vastus externus with a piece cut out. 



