EXAMINATION OF SOME SPINAL NERVES 121 
Taken in longitudinal direction, the order of spinal localization of simple limb movements in the 
brachial enlargement of the Ape is : — 
protraction of shoulder. 
abduction of shoulder, 
outward rotation of shoulder. 
flexion of elbow. 
supination ot forearm. 
adduction of shoulder. 
radial abduction of wrist. 
extension of wrist. 
inward rotation of shoulder. 
extension and abduction of thmnb. 
extension of elbow. 
extension of fingers. 
flexion of wrist. 
retraction of shoulder, 
pronation of forearm. 
flexion of fingers. 
interosseous flexion of fingers. 
adduction and abduction of fingers, 
abduction of little finger. 
So much mutual overlapping of the spinal representation of the simple limb-movements is 
present, that the above list does not give a very intelligible picture of the real topographical 
relationshfps of these motor centres. These are better represented in the following scheme : — 
Q 
