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small intestine

Intestinal villi Small intestine (immunolabeling of smooth muscle actin) Normal intestinal mucosa

Anatomical parts:

- duodenum
- jejunum
- ileum

Components

- intestinal mucosa
- intestinal muscularis mucosae
- intestinal submucosa
- intestinal muscularis
- intestinal subserosa
- intestinal serosa
- intestinal vessels

Specific cells:

- enterocytes
- Paneth cells
- goblet cells

Unspecific cells:

- smooth muscle cells
- fibroblasts
- vascular cells
- endothelial cells
- inflammatory cells

  • lymphocytes (intra-epithelial lymphocytes)
  • plasmocytes
  • eosinophilic polynuclears

- nervous cells

Pathology

- intestinal malformations
- intestinal lesions

- intestinal diseases
- intestinal tumors

Videos

- Histology of the duodenum (by Washington Deceit)

- Histology of the jejunum (by Washington Deceit)

See also

- digestive system

References

- Thomson AB, Keelan M, Thiesen A, Clandinin MT, Ropeleski M, Wild GE. Small bowel review: normal physiology part 2. Dig Dis Sci. 2001 Dec;46(12):2588-607. PMID: 11768248

- Goldman H, Antonioli DA. Mucosal biopsy of the rectum, colon, and distal ileum. Hum Pathol. 1982 Nov;13(11):981-1012. PMID: 6759364

Keywords