CH. XXVII.] 



THE INTESTINES. 



447 



supported by connective tissue. They are well provided with 

 lymphatic vessels, which form a set distinct from those of the 

 mucous membrane. 



Between the two muscular coats is a nerve-plexus (Auerbach's 



Fig. 378. Horizontal section of a small fragment of the mucous membrane, r including 

 one entire crypt of Lieberkuhn and parts of several others. The glands are 

 separated by loose adenoid tissue. 



Fig- 3/9. Auerbach's nerve-plexu* in small intestine. Oanglion-cells are imbedded in 

 the plexus, the whole of which U enclosed in a nucleated sheath. (Klein.) 



plexus) (fig. 379), similar in structure to Meissner's (in the sub- 

 mucous coat), but coarser and with more numerous ganglia. 



(3.) Between the mucous and muscular coats is the submucoua 

 coat, which consists of connective tissue in which numerous blood- 



