326 



GANGLIONS. 



Longitudinal view of the fibrils of a nerve. (M. Raspail.) 



the swellings at the roots of the nerves of sense, called also 

 ganglia, of white fibrous substance, and of a pulpy, greyish, red- 

 dish, or whitish substance in which this is plunged and from which 

 it is easily distinguished. The white filaments anastomose and 

 interlace or mingle most freely, and membranes exist similar to 

 those of nerves, within them and without. M. Raspail represents 

 a ganglion like the median nerve, only that the separate portions 

 half enclose each other. 



Slice of a ganglion of the sympa- 

 thetic nerve. The nervous trunks 

 are only half enclosed in each other, 

 but all in a common covering. The 

 black spots represent blood-vessels. 

 (M. Raspail.) 



