THE PERIPHERAL NERVOUS SYSTEM. 401 
Fic. 163. — DISSECTION OF 
Lec, LATERAL VIEW, TO 
sHOW DISTRIBUTION OF THE 
\, GREAT ScraTic NERVE. 
) The biceps, caudoiemoralis, 
‘\ gluteus maximus, gluteus me- 
\\ dius, tensor vagine femoris, 
iW and part of the peroneus 
longus have been re- 
moved. a, N. ischia- 
dicus or great sciatic 
nerve; 4, muscular 
branch; ¢, N. suralis; 
d, N. peroneus com- 
munis; ¢, N. tibialis; 
J. N. peroneus pro- 
fundus; g, N. pe- 
roneus superficialis 
and its terminal 
branches; #, branch- 
es of N. cutaneus 
femoris posterior; 7, 
N. gluteus inferior; 7, 
N. gluteus superior; 2, 
vena saphena parva; 
k’, communicating 
branch to V. glutea in- 
ferior. 1, M. sartorius; 2, 
cut origin of M. gluteus me- 
dius; 3, cut origin of M. glu- 
teus maximus; 4, cut origin of 
M. caudofemoralis; 5, M. gluteus 
minimus; 6, M. gemellus superior; 
7, M. pyriformis; 8, M. flexor caude 
longus; 9, M. obturator internus; 10, 
M. quadratus femoris; I1, tuberosity of the 
ischium; 12, great trochanter of femur; 13, 
M. rectus femoris; 14, M. vastus lateralis; 
15, M. adductor femoris; 16, M. semimem- 
branosus; 17, M. semitendinosus (the slender 
ribbon-like muscle crossing this is M. 
tenuissimus); 18, M. vastus intermedius; 19, 
M. plantaris; 20, M. gastrocnemius; 21, M. 
peroneus longus (cut); 22, M. tibialis an- 
terior; 23, M. extensor longus digitorum; 
24, transverse ligament; 25. M. peroneus 
brevis; 26, M. soleus; 27, tendon of Achil- 
les; 28, M. extensor brevis digitorum; 29, 
tendon of M. peroneus tertius. 
