122 ELEMENTS OF MAMMALIAN ANATOMY 



Fig. 57. — Ventral Aspect of Muscles of Caudal Portion of Trunk and 



Thigh. 

 a, Transversalis abdominis becoming aponeurotic; add, adductor femoris mag- 

 nus; c, pectineus; ex. oh, 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, iliopsoas; p, penis; rcf, rectus 

 femoris; ret, rectus abdominis; sar, sartorius with its middle part cut out on the 

 left side; smh, semimembranosus; smt, semitendinosus; spmc, spermatic cord; 

 /, aponeurosis; trs, internal oblique with a rectangular piece cut out to show the 

 rectus and transversalis; ivg, tensor fasciae latae; is, testicle; vi, vastus medialis; x, 

 external abdominal ring. 



Fig. 58. — Lateral Aspect of the Muscles of the Leg with the Glutei. 



Tensor Vagin.e Femoris, Semitendinosus, and Biceps Femoris Removed. 



a. Portion of semimembranosus; ah, adductor femoris magnus; h, peroneus ter- 

 tius; ct, cut surface of the vastus lateralis; d, peroneus brevis; eld, extensor longus 

 digitorum; gas, gastrocnemius; I, tendinous loop; Ip, annular ligament; It, external 

 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 

 femoris; t, ligamentum patella?; tr, greater trochanter; ts, soleus; tg, tendon of gas- 

 trocnemius; Ipl, tendon of the plantaris; th, tibialis anterior; vex, vastus lateralis 

 with a piece cut out. 



