Fig. 126. DISSECTION OF GLUTEAL REGION, BACK OF THIGH AND KNEE. i. 

 Gluteal maximus. 2, Long head of biceps. 3, Great sciatic nerve. 4, Short head of 

 biceps. 5, Internal popliteal nerve. 6, External popliteal nerve. 7, Posterior 

 saphenous artery (cutaneous). 8, Outer head of gastrocnemius. 9, Communicans 

 tibialis nerve. 10, Communicans fibularis (peronei). n, Semimembranosus. 12, 

 Semitendinosus. 13, Perforating artery. 14, Muscular branches of great sciatic to 

 ii and 12. 15, Fourth perforating artery. 16, Popliteal vein. 17, Popliteal artery. 

 18, Tendon of gracilis. 19, Tendon (divided) of Sartorius. 20, Inner head of gas- 

 trocnemius. 21, Great sacrosciatic ligament. 22, Sciatic artery. 23, Small sciatic 

 nerve and branches. 24, Tuberosity of ischium 25, Semimembranosus. 26, Nerve 

 to 25. 27, Adductor magnus. 28, Perforating artery. 29, Popliteal vein. 30, Popli- 

 teal artery. 31, Superior internal articular artery. 32, Inferior muscular (sural) 

 arteries. 33, Inner head of gastrocnemius. 34, Internal inferior articular artery. 

 35, Gluteus medius. 36, Gluteal artery. 37, Muscular branches (divided) to the gluteus 

 maximus (removed). 38, Pyriformis. 39, Obturator internus and gemelli. 40, 

 Great trochanter. 41, Anastpmotic branch of sciatic artery. 42, Quadratus femoris. 

 43, Insertion of gluteus maximus. 44, First perforating artery. 45, Second perforat- 

 ing artery. 46, Vastus externus. 47, Third perforating artery. 48, Short head of 

 biceps. 49, Great sciatic nerve. 50; Cut end of long head of biceps. 51, External 

 popliteal nerve. 52, Internal popliteal nerve. 53, Superior external articular artery. 

 54, Nerve to outer head (56) of gastrocnemius. 55, Inferior muscular (sural) arteries. 

 56, Outer head of gastrocnemius. 57, Plantaris. 



