FIG. 162. THE LUMBAR AND SACRAL NERVES, AS SEEN IN A VIEW OF THE 

 DORSAL WALL OF THE ABDOMINAL CAVITY, AFTER REMOVAL OF THE 

 VISCERA. 



On the right side the iliopsoas, psoas minor, and quadratus lumborum have been 

 removed. The symphysis pubis has been split and the two parts divaricated, to 

 show the pelvic cavity;. on the right side parts of the innominate bones and the 

 levator ani and coccygeus muscles have been removed. //- VII, second to seventh 

 lumbar nerves; 1-3, first to third sacral nerves, a, second lumbar nerve; b, lateral 

 and medial branches of third lumbar nerve; c, N. genitofemoralis (c 1 , its lateral 

 branch; c''. its medial branch): d, N. cutaneus femoralis lateralis; e, muscular 

 branch of N. femoralis; f, N. femoralis; g, N. obturatorius ; h, N. ischiadicus or 

 great sciatic nerve- i, N. gluteus superiorly, N. gluteus inferior; k, N. cutaneus 

 femoris posterior; /, N. pudendus; m, N. hemorrhoidalis inferior; n, part of the 

 sympathetic (incompletely shown, merely to indicate connections with the spinal 

 nerves); 4. M. transversus abdominis: 5. 6, cut edges of M. obliquus internus and 

 externus; 7, dorsal border of the diaphragm; 8, M. iliopsoas (mostly removed on the 

 right side); 9, M. psoas minor; IO. M. pyriformis; II, M. levator ani; II'. M. ilio- 

 caudalis; 12, M. flexor caudre longus; 13, M. flexor caudae brevis; 14, edge of pubic 

 symphysis; 15, cut end of M. obturator internus; 16, cut ramus of ischium; 17, cut 

 ramus of pubis. 



