THE SPINAL XERVI .-. 195 



(3) Branches (flp) to the Muse, plantaris and the 37. flexor 

 digitorum. 



(4) A branch to the 37. abductor Italluci*. 



(5) The 7?. digitalis volaris I (flvlj supplies the inner side of the 

 first toe by its terminal twig. 



(</) The Xerrus tibialis (Fig. 129 f) passes downwards on the 

 hinder surface of the tibio-fibula, sinks into the 37. tibiatis poxticu.* 

 to appear again at its hinder border ; it then runs over the ankle- 

 joint into the sole of the foot, where it lies midway in the space 

 between the two Ossa tarsi and between the 37. extensor tarsi and the 

 37. abdv.ctor digit i I longus the nerve then runs downwards in the 

 groove of the small Os tarsi and divides to form three branches : 



(1) The first branch (dvIT) runs to the space between the second 

 and third fingers, where it bifurcates : 



(a) The Kami digital, volaris 7 run transversely over the muscles 

 of the second toe, supply the muscles of the first toe, and bifur- 

 cate to form the JR. digital, volaris I and 77. 



(/3) The Ram. digit, ro/ar. 77 divides in the space between the 

 second and third fingers to supply the Flex. pJialang. and the adjacent 

 sides of these toes. 



(2) The second branch (dvlll) runs over the N.flex. metatarsi of 

 the third toe to the space between the third and fourth toes, and 

 bifurcates to supply the adjacent sides of these toes and the web 

 between them. 



(3) The third branch at once divides to supply : 

 (a) The 37. trans? . metatarsi. 



(/3) The 373A lumbricales of the fourth toe. 



(-/) The 37 abductor digit. J~ (abj), the 37. flexor brevis dig. V 

 ( F-J), and the 37. adductor dig. V (ad$} ; it then ends as 



(8) A bifurcating branch forming the It. digit, rolar. of the fourth 

 and fifth toes. 



III. The Xemix peroneus (N. peroneus communis superior, Ecker), 

 (Fig. i^opr] is the second division of the sciatic nerve; it passes 

 between the outer head of origin of the 37. gadrocnemiiis and the 

 tendon cf insertion of the 37. biceps, it then lies on the tibio-fibula 

 between the 37. gtuttrocmmiiu and the 37. peroneus, where it is ac- 

 companied by the J e/ia (ibialis postica, then runs downwards upon 

 the 37. extensor crvris and the F/ejror tarsi ant., and passes under 

 the 37. tibial. anticus and bifurcates : its branches are : 



O 2 



