Histology Flashcards
What type of epithelium lines the oral cavity, pharynx and oesophagus?
Non-Keratinised stratified squamous epithelium
What is the purpose of the epithelium in the oral cavity, pharynx and oesophagus?
Protective
What type of epithelium lines the stomach?
Simple columnar epithelium with tubular glands
What is the purpose of the epithelium of the stomach?
Secretory
What type of epithelium lines the small intestine?
Simple columnar with villi and tubular glands
What is the purpose of the epithelium of the small intestine?
Absorptive
What type of epithelium lines the large intestine?
Simple columnar with tubular glands
What is the purpose of the epithelium which lines the large intestine?
Protective and absorptive
What type of epithelium lines the anal canal?
Non-keratinised stratified squamous epithelium
What is the purpose of the epithelium lining the anal canal?
Protective
What are the 4 layers of the digestive tract?
Mucosal
Submucosal
Muscularis externae
Series of Adventitia
What are the three layers within the mucosa?
Epithelium, lamina propria and muscularis mucosa
What is the muscularis externae composed of`?
2 layers of smooth muscle
Name the 4 types of papillae of the tongue
Fungiform, filiform, foliate and circumvallate
Which part of the tongue lacks papillae?
Posterior 1/3
what are gastric pits lined with?
Mucous cells
Why does the stomach have an additional layer within the muscular externa?
To aid the churning action of the stomach
What is found in the submucosa of the duodenum?
Brunner glands
Which part of the intestine has largest villi?
Jejunum
What does the submucosa of the ileum contain?
Pyers patches
What are the cells of the epithelium of the small intestine?
Enterocytes Goblet cells Paneth cells neuroendocrine cells Stem cells
what are the cells of the epithelium of the large intestine?
Absorptive cells
Goblet cells
