MUSCLES OF THE HIND-LIMB 



63 



GL 



A. 



B. 



FlG. ii. The superficial muscles of the frog's left hind-limb. 

 A : from the preaxial surface ; B : from the postaxial surface. 



AB, adductor brevis ; AM, adductor magnus; B, biceps ; C, cloacal 

 aperture ; EC, extensor cruris ; F, distal end of femur ; FT, tendon of 

 flexor tarsi ; Q, gastrocnemius ; GL, glutaeus ; P.^eroneus ; PY, pyri- 

 formis ; RA, rectus anticus femoris ; Rl, rectus internus major; 

 RN, rectus internus minor; 8, sartorius; SM, semimembranosus ; 

 T, triceps extensor femoris; TA, tibialis anticus; TF, tibio-tlbula; 

 TP, tibialis posticus ; VE, vastus extermis ; VI, vastus- internus. 



