170 



ELEMENTS OF HISTOLOGV. [Chap. xx. 



of the external muscular coat in the alimentary canal, 

 known as the plexus myentericus of Auerbach, the 

 ganglia in the plexus of nerve branches of the sub- 



Fig. 101. Plexus of fine Sympathetic Nerve-fibres, with Ganglionic 

 Enlargements in the Nodal Points. From the Plexus of Meissner 

 in the Submucous Tissue of the Intestine. 



a, Fine nerve-fibres; 6, groups of ganglion cells interposed between the 

 nerve-fibres. 



mucous tissue in the alimentary canal, known as 

 Meissner*s plexus (Fig. 101), the ganglia in the nervous 

 plexuses in the outer wall of the bladder, in the bron- 

 chial wall, and in the trachea, and lastly the ganglia in 

 connection with the nerves supplying the ciliary muscle 

 of the eye, all belong to the sympathetic system. 



