268 ANATOMY FOR NURSES [Chap. XIV 



depressions in the mucous membrane, lined with columnar epithe- 



lium. 



(2) Duodenal glands. — These glands are better known as 

 Brunner's jiiaiuls. They are compound glands found in the 



Fig. 154. — Portion of the Mucous Membrane, fro.m the Ileum. Mod- 

 erately magnifietl, exhibiting the villi on its free surface, and between them the 

 orifices of the tubular glands. 1, portion of an aggregated lymph nodule; 2, a 

 solitary lymph nodule ; 3, fibrous tissue. (Dalton.) 



submucous tissue of the duodenum. The simple follicles and the 

 duodenal glands secrete the intestinal digestive juice which is 

 named the succus entericus. 



(3) Lymph nodules. — The.se are of two varieties, (a) solitary 

 lymph nodules, (b) aggregated lymph nodules of Peyer. 



Fig. 155. — Mucosa of Small Intestine in Ideal Vertical Cro88-8BCTion. 



(Gerrish.) 



