590 PHYSIOLOGY OF THE NERVE CELL AND THE SPINAL CORD 



permit us to say on which side of the cord the pathway governing certain 

 movements runs. 



C. Purely Physiological Methods. Among these are to be mentioned: 

 4. Partial cross section of the cord in live animals. The resulting functional 



xml) 



FIG. 262. Fm. 263. 



FIG. 262. Secondary descending degeneration following a primary lesion of the left cerebral 

 hemisphere, after Erb. 



FIG. 263. Arrangement of the experiment for study of the conducting pathways in the spinal 

 cord of the monkey by the electrical method, after Gotch and Horsley. The cord is cut in 

 the middle of the thoracic region and in the upper lumbar region. The stimulus is applied at 

 the upper section (E) and connection with the galvanometer (G) is made from the lower section. 



