CERVICAL NERVES. 569 
In this 
The semispinalis colli is on its inner side and the complexus covers it. 
situation the nerve gives off several small muscular and communicating branches. 
as-" 
TT 
L2.3 
Fic. 422..Ture DistRIBUTION OF CUTANEOUS NERVES ON THE BACK OF THE TRUNK. 
On one side the distribution of the several nerves is represented, the letters indicating their nomenclature. 
G.O (C.2), Great occipital ; C.3, Least occipital ; T.1, ef seg., Posterior primary divisions of thoracic nerves 
L.1, et seq., Posterior primary divisions of first three lumbar nerves ; 8.1, e¢ seq., Posterior primary 
; T.2-12, Lateral branches of 
divisions of sacral nerves; Acr, Acromial branches from cervical plexus 
thoracic nerves ; Cire, Cutaneous branches of circumflex nerve; L.1, Iliac branch of ilio-hypogastric 
nerve ; H.C, External cutaneous nerve ; 8.Sc, Small sciatic nerve. 
On the other side a schematic representation is given of the areas supplied by the above nerves, the numerals 
indicating the spinal origin of the branches of distribution to each area. 
