dr navneet kumar professor anatomy.kgmu lko histology of lower gastro intestinal tract by navneet...
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![Page 1: Dr Navneet Kumar Professor Anatomy.KGMU LKO Histology of lower gastro intestinal tract By Navneet kumar Professor Department of Anatomy KGMU LKO](https://reader033.vdocuments.site/reader033/viewer/2022061610/5697bfe31a28abf838cb4dd6/html5/thumbnails/1.jpg)
Dr Navneet Kumar Professor Anatomy .KGMU LKO
Histology of lower gastro Histology of lower gastro intestinal tractintestinal tract
By Navneet kumarProfessor Department of Anatomy KGMU LKO
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Dr Navneet Kumar Professor Anatomy .KGMU LKO
Lower G.I.T
• Intestine• Small Intestine• -Duodenum• -Jejunum• - ileum • Large intestine (Colon)• -Appendix • -Rectum
-Anal canal
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Dr Navneet Kumar Professor Anatomy .KGMU LKO
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
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Dr Navneet Kumar Professor Anatomy .KGMU LKO
![Page 5: Dr Navneet Kumar Professor Anatomy.KGMU LKO Histology of lower gastro intestinal tract By Navneet kumar Professor Department of Anatomy KGMU LKO](https://reader033.vdocuments.site/reader033/viewer/2022061610/5697bfe31a28abf838cb4dd6/html5/thumbnails/5.jpg)
Dr Navneet Kumar Professor Anatomy .KGMU LKO
Small intestine -Duodenum
1.Mucus membrane -epithelium -Intestinal villi - Simple columnar - Goblet cells -lamina propria intestinal glands (crypts
of lieberkuhn) -muscularis mucosae2.Submucosa Brunner's gland3.Musculalis layer -inner circular -outer longitudinal4. Serosa
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Dr Navneet Kumar Professor Anatomy .KGMU LKO
Intestinal glands
• Absorptive cells• Paneth cells• Goblet cells• Endocrine cells
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Dr Navneet Kumar Professor Anatomy .KGMU LKO
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Dr Navneet Kumar Professor Anatomy .KGMU LKO
Duodenum
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Dr Navneet Kumar Professor Anatomy .KGMU LKO
Small intestine -Jejunum
1.Mucus membrane -epithelium- Simple columnar - intestinal villi -lamina propria intestinal glands (crypts of
lieberkuhn) -solitary Lymphoid nodule -muscularis mucosae2.Submucosa -NO gland 3.Musculalis layer -inner circular -outer longitudinal4. Serosa
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Dr Navneet Kumar Professor Anatomy .KGMU LKO
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Dr Navneet Kumar Professor Anatomy .KGMU LKO
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Dr Navneet Kumar Professor Anatomy .KGMU LKO
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Dr Navneet Kumar Professor Anatomy .KGMU LKO
Small intestine -jejunum
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Dr Navneet Kumar Professor Anatomy .KGMU LKO
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Dr Navneet Kumar Professor Anatomy .KGMU LKO
Small intestine -ILeum
1.Mucus membrane -Epithelium - Simple columnar - intestinal villi -Lamina propria intestinal glands (crypts of
lieberkuhn) - Muscularis mucosae2.Submucosa -aggregated Lymphoid
nodule (peyers patches) - mircofold cells (“M” Cell)3.Musculalis layer -inner circular -outer longitudinal4. Serosa
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Dr Navneet Kumar Professor Anatomy .KGMU LKO
Small intestine -ileum
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Dr Navneet Kumar Professor Anatomy .KGMU LKO
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Dr Navneet Kumar Professor Anatomy .KGMU LKO
Large intestine
1.Mucus membrane -epithelium - Simple columnar - Goblet cells are more - villi are absent -lamina propria intestinal glands (crypts
of lieberkuhn) -muscularis mucosae2.Submucosa 3.Musculalis layer -inner circular -outer longitudinal4. Serosa or adventitia
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Dr Navneet Kumar Professor Anatomy .KGMU LKO
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Dr Navneet Kumar Professor Anatomy .KGMU LKO
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Dr Navneet Kumar Professor Anatomy .KGMU LKO
Large intestine
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Dr Navneet Kumar Professor Anatomy .KGMU LKO
Large intestine
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Dr Navneet Kumar Professor Anatomy .KGMU LKO
Appendix
1.Mucus membrane -epithelium- Simple
columnar - villi are absent -lamina propria intestinal glands (crypts of
lieberkuhn), lympgoid tissue
-muscularis mucosae2.Submucosa Lymphoid nodule 3.Musculalis layer -inner circular -outer longitudinal4. Serosa
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Dr Navneet Kumar Professor Anatomy .KGMU LKO
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Dr Navneet Kumar Professor Anatomy .KGMU LKO
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Dr Navneet Kumar Professor Anatomy .KGMU LKO
Appendix
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Dr Navneet Kumar Professor Anatomy .KGMU LKO
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Dr Navneet Kumar Professor Anatomy .KGMU LKO
Anorectal junction