Anatomy Flashcards
1
Q
Histology of Small Intestine
A
- Mucosa
- Submucosa
- Circular muscle
- Longitudinal muscle
- Subserosa
- Serosa
- Enterocytes/goblet cells + villi + crypts of Lieberkuhn (Paneth & endocrine cells) + lamina propria (Peyers patch - GALT)
2
Q
What is the role of :
1. Paneth Cells
2. Endocrine Cells
3. Goblet Cells
4. Brunner’s Gland
A
- Contain esoinophilic lysozyme rich granules, defensins, immunoglobulins.
- Gut hormones
- Mucin production
- Found in duodenal submucosa. Produce alkaline mucous to neutralize acid.
3
Q
Histology of Large Intestine
A
- Mucosa
- Submucosa
- Muscularis propria
- Sub serosa
- Serosa
function: water absorption + storage/elimination of food residues
- Circular layer becomes internal anal sphincter. Longitudinal bands called taenia coli.