GLUT^AL REGION 



225 



ischiadicum and the posterior area of the thigh, the following 

 muscles may be recognised: (i) The glutaeus medius lying 

 over the greater part of the dorsum ilii ; (2) the piriformis, 

 issuing from the pelvis through the great sciatic foramen ; 



Nerve to quadratus 



Inferior glutaeal nerve 1 Pudendal nerve 

 Posterior cutaneous nerve of thigh 

 uperficial part of superior glutaeal artery \ 

 Superior gluta:al nerve 



Deep part of sup. ( \ 

 .rteryl 



glutaeal a 



Inferior glutaeal artery 



Internal pudendal artery 



erve to obturator internus 

 Gemellus superior 



Obturator internus 

 emellus inferior 

 Sacro-tuberous ligame 

 Obturator externus 

 Quadratus femoris 



Tuber ischiadicu 



Nerve to tensor fasciae lata 

 ind lateral circumflex artery 



Great trochante 

 Quadratus femoris 



Medial circumflex arter 



Adductor magntfs 4/US ^^^ / \ \ \ Adductor magnus 



Semimembranosus 

 ;mitendinosus 

 iceps femoris 



FIG. 85. Dissection of the Glutaeal Region. The Glutaeus Maximus, 

 Gluteeus Medius, and the Quadratus Femoris have been reflected. 



(3) the tendon of the obturator internus coming through the 

 small sciatic foramen, with the gemellus superior attached to 

 its proximal border and the gemellus inferior to its distal 

 border ; (4) the quadratus femoris passing from the tuber 

 ischiadicum to the proximal end of the femur ; (5) the proximal 

 VOL. i 15 



