256 Mr. J. S. R. Russell. On the Nerve Roots of 



obtained by the one method could be checked by those obtained by 

 the other. In my former experiments I frequently was able to 

 expose the muscles directly after the animal was killed, because the 

 nerve roots, at the end of a prolonged experiment, retained their 

 excitability for a considerable time, half an hour or more. In these 

 experiments this plan has been abandoned, and exposure of the 

 muscles during life alone relied on. 



1st Lumbar Root. 



No muscle related to the limb. 



2nd Lumbar Hoot. 

 Psoas parvus. 



3rd Lumbar Hoot. 

 Psoas parvus. 

 Psoas magnus. 

 Sartorius. 



4th Lumbar Root. 

 Psoas magnus. 

 Iliacus. 

 Sartorius. 

 Adductor longus. 

 Quadriceps extensor. 

 Gracilis. 



6th Lumbar Root. 

 Iliacus. 



Gluteus minimus. 

 Adductor longus. 

 Adductor magnus. 

 Quadriceps extensor. 

 Gracilis. 

 Tibialis anticus. 

 Tibialis posticus. 

 Extensor longus digitorum. 

 Extensor proprius hallucis. 

 Tensor fasciae femoris. 



6th Lumbar Root. 



Adductor magnus. 



Hamstrings. 



Soleus. 



Gastrocnemius, 



Tibialis anticus. 



Tibialis posticus. 



Extensor longus digitorum. 





