Lecture 14 GI Histology Flashcards
Name histological features of skeletal muscle
Capillary
Myofibrils
Peripheral Nuclei
Name histological features of Connective tissue
Fibroblast
Adipocytes
Immune cells
Name the 5 layers if skin
Stratum corner Stratum Lucidum Stratum spinous Stratum basale Dermis (submucosa)
What type of cell is the epithelium of the skin made up of
Stratified squamous keratinising epithelium
List the layers of the oesophagus
- Mucosa
a. epithelium
b. lamina propria
c. Muscular mucosal - Submucosa
- Muscular externa
a. Inner Circular
b. Outer longitudinal - Adventitia
What cells are located in the line of the epithelium on the surface of the stomach
Tall columnar mucous secreting cells
What are the 3 layers of the muscularis externa of the stomach
Inner oblique
Central circular
External longitudinal
What does the submucosa contain in the stomach
Blood vessels
Nerves
Connective tissue
Name the cells found in the stomach
Parietal
Chief cells
Simple columnar epithelium
Gastric glands in mucosal
What do parietal cells secrete
HCl
What do Chief cells secrete
Pepsinogen
What are the name of the lymphoid aggregations found in the mucosa of the small intestine
Peyer’s Patches
Name the histological features of the small intestine (duodenum)
Crypts of Leiberkuhn Villi Muscularis mucosal Submucosa Muscularis externa
Name a distinct histological feature of the jejunum
Paneth Cells
What are Paneth Cells
the most highly secretory of the four lineages of epithelial cells that form the intestinal mucosa. Their main function is to produce, package and export a variety of antimicrobial proteins and peptides including α-defensins, angiogenin-4, lysozyme and secretory phospholipase A2.
