SURFACE ANATOMY OF THE LOWER EXTREMITY 



1339 



upper tendon stands out as 

 a prominent ridge running 

 obliquely downward and 

 lateralward from the neigh- 

 borhood of the pubic tu- 

 bercle, and forming the me- 

 dial border of the femoral 

 triangle. The lower tendon 

 of Adductor magnus can be 

 distinctly felt as a short 

 ridge extending downward 

 between the Sartorius and 

 Vastus medialis to the ad- 

 ductor tubercle. The ad- 

 ductores fill in the triangular 

 space at the upper part of 

 the thigh, between the femur 

 and the pelvis, and to them 

 is due the contour of the 

 medial border of the thigh, 

 the Gracilis contributing 

 largely to the smoothness 

 of the outline. 



The Glutseus maximus (Fig. 

 1239) forms the full rounded 

 outline of the buttock; it is 

 more prominent behind, 

 compressed in front, and 

 ends at its tendinous inser- 

 tion in a depression imme- 

 diately behind the greater 

 trochanter; its lower border 

 crosses the gluteal fold 

 obliquely downward and 

 lateralward. The upper is 

 part of Glutaeus medius 

 visible, but its lower part 

 with Glutsus minimus and 

 the external rotators are 

 completely hidden. From 

 beneath the lower margin 

 of Glutseus maximus the 

 hamstrings appear; at first 

 they are narrow and not 

 well-defined, but as they 

 descend they become more 

 prominent and eventually 

 divide into two well-marked 

 ridges formed by their ten- 

 dons; these constitute the 

 upper boundaries of the 

 popliteal fossa. The tendon 

 of Biceps femoris is a thick 

 cord running to the head of 



Tensor fasciae 

 latcB 



Hamstrings 



Gluteal fold 



Semimembranosus 

 Semitendinosus 



Popliteal fossa 



Gastrocnemius 



Perona longus and brevis 



Medial malleolus 



Tendo calcaneus 



Lateral malleolus 

 Fio. 1239. Back of left lower extremity. 



