148 NORMAL HISTOLOGY. 



and musculosa, divide and subdivide in the loose 

 tissue of the submucosa, from whence branches are 

 sent in between the glands; here, before reaching 

 the surface, they break up into a close capillary net 

 surrounding the follicles, and the blood is finally 

 collected into narrow venous trunks directly beneath 

 the surface epithelium ; from these it passes back 

 into larger veins in the submucosa, where it collects 

 in the efferent veins. The lymphatic vessels lie 

 between the glands, form anastomosing channels in 

 the submucosa, and pass out through the musculosa, 

 receiving larger and smaller trunks from the latter. 



The nerve-trunks from the sympathetic and pneu- 

 mogastric form a plexus, associated with minute 

 ganglia, called A uerbacJis plexus, between the layers 

 of the musculosa ; from this branches pass into the 

 submucosa and form another similar plexus, called 

 Meissners plexus. 



Nodules of lymphoid tissue, varying greatly in 

 size and number, are found in the mucosa of the 

 stomach, at the base of the follicles, and sometimes 

 extending up between them. These are sometimes 

 visible to the naked eye as small grayish promi- 

 nences on the surface of the mucous membrane, and 

 have been called the lenticular glands or nodules of 

 the stomach. 



THE SMALL INTESTINE. 



The supporting connective-tissue framework of 

 the mucosa in the small intestine is more abundant 



