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Histology of lower gastro intestinal tract

Histology of lower gastro intestinal tract. By Navneet kumar Professor Department of Anatomy KGMU LKO. Lower G.I.T. Intestine Small Intestine -Duodenum -Jejunum - ileum Large intestine (Colon) -Appendix

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Histology of lower gastro intestinal tract

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  1. Histology of lower gastro intestinal tract By Navneet kumar Professor Department of Anatomy KGMU LKO Dr Navneet Kumar Professor Anatomy .KGMU LKO

  2. Lower G.I.T • Intestine • Small Intestine • -Duodenum • -Jejunum • - ileum • Large intestine (Colon) • -Appendix • -Rectum -Anal canal Dr Navneet Kumar Professor Anatomy .KGMU LKO

  3. Gross features of intestine • Small Intestine • Villi • Valve of kerckring (plicae circularis) • crypts of lieberkuhn (intestinal glands) • Large intestine • No Villi • Sacculation +nt • Teania coli +nt • Appendices epiploicae Dr Navneet Kumar Professor Anatomy .KGMU LKO

  4. Dr Navneet Kumar Professor Anatomy .KGMU LKO

  5. Small intestine -Duodenum 1.Mucus membrane -epithelium -Intestinal villi - Simple columnar - Goblet cells -lamina propria intestinal glands (crypts of lieberkuhn) -muscularis mucosae 2.Submucosa Brunner's gland 3.Musculalis layer -inner circular -outer longitudinal 4. Serosa Dr Navneet Kumar Professor Anatomy .KGMU LKO

  6. Intestinal glands • Absorptive cells • Paneth cells • Goblet cells • Endocrine cells Dr Navneet Kumar Professor Anatomy .KGMU LKO

  7. Dr Navneet Kumar Professor Anatomy .KGMU LKO

  8. Duodenum Dr Navneet Kumar Professor Anatomy .KGMU LKO

  9. Small intestine -Jejunum 1.Mucus membrane -epithelium- Simple columnar - intestinal villi -lamina propria intestinal glands (crypts of lieberkuhn) -solitary Lymphoid nodule -muscularis mucosae 2.Submucosa -NO gland 3.Musculalis layer -inner circular -outer longitudinal 4. Serosa Dr Navneet Kumar Professor Anatomy .KGMU LKO

  10. Dr Navneet Kumar Professor Anatomy .KGMU LKO

  11. Dr Navneet Kumar Professor Anatomy .KGMU LKO

  12. Dr Navneet Kumar Professor Anatomy .KGMU LKO

  13. Small intestine -jejunum Dr Navneet Kumar Professor Anatomy .KGMU LKO

  14. Dr Navneet Kumar Professor Anatomy .KGMU LKO

  15. Small intestine -ILeum 1.Mucus membrane -Epithelium - Simple columnar - intestinal villi -Lamina propria intestinal glands (crypts of lieberkuhn) - Muscularis mucosae 2.Submucosa -aggregated Lymphoid nodule (peyers patches) - mircofold cells (“M” Cell) 3.Musculalis layer -inner circular -outer longitudinal 4. Serosa Dr Navneet Kumar Professor Anatomy .KGMU LKO

  16. Small intestine -ileum Dr Navneet Kumar Professor Anatomy .KGMU LKO

  17. Dr Navneet Kumar Professor Anatomy .KGMU LKO

  18. Large intestine 1.Mucus membrane -epithelium - Simple columnar - Goblet cells are more - villi are absent -lamina propria intestinal glands (crypts of lieberkuhn) -muscularis mucosae 2.Submucosa 3.Musculalis layer -inner circular -outer longitudinal 4. Serosa or adventitia Dr Navneet Kumar Professor Anatomy .KGMU LKO

  19. Dr Navneet Kumar Professor Anatomy .KGMU LKO

  20. Dr Navneet Kumar Professor Anatomy .KGMU LKO

  21. Large intestine Dr Navneet Kumar Professor Anatomy .KGMU LKO

  22. Large intestine Dr Navneet Kumar Professor Anatomy .KGMU LKO

  23. Appendix 1.Mucus membrane -epithelium- Simple columnar - villi are absent -lamina propria intestinal glands (crypts of lieberkuhn), lympgoid tissue -muscularis mucosae 2.Submucosa Lymphoid nodule 3.Musculalis layer -inner circular -outer longitudinal 4. Serosa Dr Navneet Kumar Professor Anatomy .KGMU LKO

  24. Dr Navneet Kumar Professor Anatomy .KGMU LKO

  25. Dr Navneet Kumar Professor Anatomy .KGMU LKO

  26. Appendix Dr Navneet Kumar Professor Anatomy .KGMU LKO

  27. Dr Navneet Kumar Professor Anatomy .KGMU LKO

  28. Anorectal junction Dr Navneet Kumar Professor Anatomy .KGMU LKO

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