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Oesophagus
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Oesophagus

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Oesophagus Presentation Transcript

  • 1. General Plan of GIT IC OL A (1) M : Mucosa: Epithelium Lamina Propria Muscularis Mucosa (3) MUSCULOSA IC: Inner circular OL: Outer longitudinal (4) A: Adventitia/ Serosa M S (2) S: Submucosa
  • 2. E E : Non-Keratininzed Stratified Squamous Epithelium on a clear wavy BM.
  • 3. G D Oesophagus Dog G: Oesophageal glands in submucosa: *Mucous Glands *Compound tubulo-alveolar *D: Ducts pierce mucosa to open into lumen G D
  • 4. Oesophagus Cat Well-developed Muscularis Mucosa No Glands in submucosa
  • 5. Digestive Tract Histology Department / Faculty of Medicine / Cairo University
  • 6. Digestive Tract Histology Department / Faculty of Medicine / Cairo University
  • 7. Auerbach´s Plexus between the inner circular ( C) and outer longitudinal (L) muscle layers Arrows:
  • 8. Gastro-oesophageal junction Oesophageal glands Inner oblique submucosa Gastric glands non ker. St . sq.epith.
  • 9. Gastro- Oesophageal Junction
  • 10.
    • Data Show Trial Exam for Oesophagus
  • 11.
    • Identify the organ.
    • 2) Mention the type of epithelium (E).
    • 3) Black arrow
    • Blue arrow
    • Green arrow.
    • Astreix.
    • Arrow head .
    • Square.
    E ▲ ■ 1 *
  • 12. 1) Identify the structures Indicated by the arrow. Be specific for the type. 2) In which layer are they present? 2
  • 13. E * Identify (E), Arrows: Black, Blue & Green. Identify astreix. 3
  • 14. Is this slide oesophagus cat or dog? Mention the criteria for differentiation. 4
  • 15. 1 2
    • Identify the type of junction.
    • 2) Which side is 1 and which is 2 ?
    • 3) Identify:
    • Arrows : Black, red & green.
    • 4) Identify layer marked by astreix.
    * 5