
Duodenum
The duodenum of the small intestine can be differentiated from the remainder of the small intestine primarily by the presence of Brunner’s glands in the submucosa. Brunner’s glands produce an alkaline mucus that counterbalances the acidity of the chyme entering the duodenum from the stomach. 100x

Mucosa
The duodenum of the small intestine can be differentiated from the remainder of the small intestine primarily by the presence of Brunner’s glands in the submucosa. Brunner’s glands produce an alkaline mucus that counterbalances the acidity of the chyme entering the duodenum from the stomach. 100x

- Villi
The duodenum of the small intestine can be differentiated from the remainder of the small intestine primarily by the presence of Brunner’s glands in the submucosa. Brunner’s glands produce an alkaline mucus that counterbalances the acidity of the chyme entering the duodenum from the stomach. 100x

- Intestinal glands
The duodenum of the small intestine can be differentiated from the remainder of the small intestine primarily by the presence of Brunner’s glands in the submucosa. Brunner’s glands produce an alkaline mucus that counterbalances the acidity of the chyme entering the duodenum from the stomach. 100x

- Lamina propria
The duodenum of the small intestine can be differentiated from the remainder of the small intestine primarily by the presence of Brunner’s glands in the submucosa. Brunner’s glands produce an alkaline mucus that counterbalances the acidity of the chyme entering the duodenum from the stomach. 100x

Muscularis mucosae
The duodenum of the small intestine can be differentiated from the remainder of the small intestine primarily by the presence of Brunner’s glands in the submucosa. Brunner’s glands produce an alkaline mucus that counterbalances the acidity of the chyme entering the duodenum from the stomach. 100x

Submucosa
The duodenum of the small intestine can be differentiated from the remainder of the small intestine primarily by the presence of Brunner’s glands in the submucosa. Brunner’s glands produce an alkaline mucus that counterbalances the acidity of the chyme entering the duodenum from the stomach. 100x

- Brunner's glands
The duodenum of the small intestine can be differentiated from the remainder of the small intestine primarily by the presence of Brunner’s glands in the submucosa. Brunner’s glands produce an alkaline mucus that counterbalances the acidity of the chyme entering the duodenum from the stomach. 100x