140 



A NEURAL METAMEKE. 



[.Book i. 



Fig. 24. Scheme of the Nerves of a Segment of the Spinal Cord. 



Gr grey, IT 7 white matter of spinal cord. A anterior, P posterior root. G ganglion 

 on the posterior root. N whole nerve, N' spinal nerve proper, ending in M skeletal 

 or somatic muscle, S somatic sensory cell or surface, X. in other ways. V visceral 

 nerve (white ramus eommunicans) passing to a ganglion of the sympathetic chain 

 2. and passing on as V to supply the more distant ganglion a, then as V" to the 

 peripheral ganglion <r' and ending in m splanchnic muscle, s splanchnic sensory 

 cell or surface, r other possible splanchnic endings. 



From 2 is given off the revehent nerve r. v (grey ramus eommunicans), which 

 partly passes backward towards the spinal cord, and partly runs as c. m, iu connection 



