614 



THE SACRAL NEEYES. 



The ivfcrwr j>'>'flcn(lal branch turns foi-wards below the ischial tuberosity to 

 reach the perinamm. Its filaments then extend forwards to the front and outer 

 part of the scrotum, and communicate with one of the superficial perineal nerves. 



Fiff. 



Fig. 376. 



37o. — Posterior CtixANEous Nerves of the Hip axi> Tuigu 

 (after Hirschfeld and Leveille). \ 



a, gluteus maximus muscle partially uncovered by the removal of a part of the fascia 

 lata, and divided at its inferior part to show the lesser sciatic nerve ; h, fascia lata over 

 the glutei nuiscles and the outer part of the hip ; c, d, part of the semiteudinosus, biceps, 

 and semimembranosus muscles exposed by the removal of the fascia ; e, gastrocnemius ; 

 /, coccyx ; (/, internal branches of the saphena vein ; 1, iliac cutaneous branches of the 

 ilio-inguinal and ilio-hypogastric nerves ; 2, cutaneous iliac branches of the last inter- 

 costal ; 3, posterior twigs of the external cutaneous nerve of the thigh ; 4, lesser sciatic 

 nerve issuing from lielow the gluteus maximus muscle ; 4', its muscnlar branches ; 4", 

 its cutaneous gluteal branches ; o, posterior middle cutaneous continued from the lesser 

 sciatic ; 5', 5', its inner and outer branches spreading on the fascia of the thigh ; 6, 6, its 

 terminal branches descending on the calf of the leg ; 7, posterior tibial and fibular 

 nerves separating in_ the popliteal space ; S, lower posterior divisions of the sacral and 

 coccygeal nerves ; 9, inferior pudendal nerve. 



Fig. 576. — Deep Posterior Nerves of the Hip Axn Thigh. 

 (after Hirschfeld and Leveille). ^ 

 a, gluteus medius muscle ; b, gluteus maximus ; c, pyriformis ; d, placed on the 



