PARTS UNDER THE GLUTEUS MAXIMUS. 



115 



Dissection. Tracing back the offsets of the sacral nerves which Trace sacral 

 perforate the glutens, and removing a fibrous stratum which covers nerves - 

 them, the looped arrangement of the first three nerves on the great 



Superior gluteal nerve. Superficial branch of gluteal artery. 



Small sciatic nerve. 



Sciatic artery. 



Pudic nerve. 

 Pudic arterv. 



Nerve to obtu- 

 rator interims. 



Long pudenrial 

 nerve. 



Cutaneous uf 

 thigh of small 

 sciatic nerve. 

 Muscular branch 

 of great sciatic 

 nerve. 



Small sciatic nerve. 

 Sciatic artery 



Anastomotic branch 

 of sciatic artery. 



Internal circumflex 

 artery. 



First perforating 

 artery. 



FIG. 48. SECOND VIEW OP TUB DISSECTION OP THE BUTTOCK (ILLUSTRATIONS 



OF DISSECTIONS). 

 Muscles : H. Adductor inagnus. 



I. Vast us externus. 

 A. Glutens medius. ^ Gluteus maximuSj cut . 



K. Great sacro-sciatic ligament, 

 c. Upper gemellus. Hamstring muscles. 



D. Obturator interims. 



E. Lower gemeUns. Nerves: 



F. Obturator externus. 



G. Quadratus femoris. 6. Great sciatic. 



Above the small sciatic are branches of the lower gluteal nerve, cut. 



sacro-sciatic ligament will appear. Finally, the nerves may be 

 followed inwards beneath the multifidus spinae to the posterior 

 sacral foramina. 



I 2 



