The document describes several organs that make up the digestive system, including the liver, esophagus, stomach, small intestine (duodenum and ileum), pancreas, and large intestine (colon). Each organ is made up of different tissue layers such as the mucosa, submucosa, muscularis, and serosa. The document also provides images to show microscopic views of the stomach, small intestine, and other organs to identify structures like gastric pits, gastric glands, villi, and goblet cells.

1. Digestive System
Rachel Brown and Lillian Tribble
Section 2
50-52

2. The Liver
Hepatocytes
Central Vein
Portal Triad

3. Esophagus.
Stratified Squamous epithelium Esophagogastric junction
Mucosa
Submucosa
Muscularis

4. Another Picture of the Esophagus
zoomed in
Adventitia

5. The ileum
Peyer’s Patches
Muscularis
mucosa
submucosa
villi

6. Duodenum
Muscularis
submucosa
serosa
mucosa
villi
Duodenal
glands
Goblet cells
(white
spaces)

7. Stomach
Submucosa
Mucosa
Muscularis
The RED
arrow(look right) is
pointing to the
serosa

8. Stomach zoomed in
Gastric Pit
Simple
columnar
epithelium
Gastric Glands

9. Pancreas
Acinar cells
Pancreatic islet

10. Submandibular
Gland
Serous cells
Mucous cells

11. Jejunum
submucosa
mucosa
muscularis
serosa
villi

12. Another picture of Jejunum
serosa
Muscularis
submucosa
villi
mucosa

13. Colon (Large Intestine)
serosa
muscularis
submucosa
mucosa
Goblet cells