esophagus submucosa
esophagus adventitia
esophagus muscularis externa
esophagus mucosa
esophagus stratified squamous epithelium of mucosa
simple columnar epithelium of stomach
gastric pit
gastroesophageal transition
stratified squamous epithelium of the esophagus
gastric glands
stomach surface epithelium
stomach lamina propria
stomach muscularis mucosae
stomach submucosa
stomach muscularis externa oblique layer
stomach muscularis externa circular layer
stomach longitudinal layer
serosa
stomach submucosa
stomach mucosa
stomach muscularis externa
stomach serosa
stomach gastric pits
stomach simple columnar epithelium
small intestine mucosa
small intestine villus
small intestine muscularis mucosa
small intestine submucosa
small intestine muscularis externa circular layer
small intestine muscularis externa longitudinal layer
small intestine serosa
duodenum villus
duodenum mucosa
duodenum submucosa
duodenum muscularis externa
duodenum adventitia
ileum peyer's patches
large intestine mucosa villus
large intestine mucosa simple columnar epithelium
large intestine mucosa goblet cells
large intestine mucosa lamina propria
large intestine mucosa intestinal glands
large intestine mucosa muscularis mucosa
pancreas
exocrine pancreas acinar cells
endocrine pancreas pancreatic islet
liver connective tissue septum
liver portal triad
liver cords of hepatocytes
liver central vein
liver sinusoids