142 
Fic. 32. 
SIDE oF A. MISSISSIPPIENSIS. 
FAR AS THEIR ENTRANCE INTO THE MUSCLES. 
1s MADE UP OF THE PRESACRAL STEMS 4, 0, c. 
1s Buitt oF Two BRANCHES FROM STEMS A & B. 
2, 
WD oy NS 
Gapow.) 
s=XXVI. sacral nerve 
SE DEES 8 
a,b,c. presacral nerves. 
a & B. postsacral nerves. 
(26th 
spinal nerve). 
to extensor ileo-tibialis muscle. 
to femoro-tibialis muscle. 
to ileo-fibularis muscle. 
to ileo-femoralis muscle. 
to caudi-ileo-femoralis mus- 
cle. 
caudi-femoralis muscle. 
The Alligator and Its Allies 
s- 
XXVI 
CruRAL PLEXUS AND IscHIADIC PLEXUS OF THE LEFT 
THE NERVE BRANCHES ARE SHOWN AS 
THe CRURAL PLEXUS 
THE OBTURATOR NERVE 
(From BRONN, AFTER 
to flexor tibialis externus 
muscle. 
to flexor tibialis internus 
muscle, 
to ischio-femoralis muscle. 
pubo -ischio -femoralis in- 
ternus. 
pubo - ischio - femoralis 
ternus muscle. 
to pubo-ischio-femoralis pos- 
terior muscle. 
ex- 
