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GI Sequence - Histology

GI Sequence - Histology. Pharynx, Esophagus and Stomach January 6, 2010. #152 Pharynx H&E. Epithelium. Lamina propria. Elastic fibers. Muscularis externa (skeletal muscle). #152 Pharynx – Elastic fibers. 152triC (aldehyde fuchsin). 152 H&E. #126 H&E Mid-esophagus.

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GI Sequence - Histology

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  1. GI Sequence - Histology Pharynx, Esophagus and Stomach January 6, 2010

  2. #152 Pharynx H&E Epithelium Lamina propria Elastic fibers Muscularisexterna (skeletal muscle)

  3. #152 Pharynx – Elastic fibers 152triC (aldehyde fuchsin) 152 H&E

  4. #126 H&E Mid-esophagus Lamina propria Muscularis mucosae Muscularis Externa Submucosa Mixed smooth and skeletal muscle Skeletal muscle Submucosal sero-mucous gland

  5. #126 Esophagus – muscularis mucosae

  6. #152 triC Pharynx Epithelium Lamina propria Elastic fibers Skeletal muscle trachea #126 mid-esophagus Epithelium Lamina propria Muscularis mucosae Sumucosal glands Smooth and skeletal m. esophagus

  7. Muscularis Externa of mid-esophagus (#126):Skeletal and smooth m. Muscularis Externa of lower esophagus (#155): Smooth muscle only

  8. #155: Cardiac StomachCardio-esophageal junction(arrow) Cardiac glands

  9. #160 (PAS) Esophagus – Stomachdarker staining gastric pits and lighter staining glands (cardiac and fundic) fundus Cardia esophagus

  10. #156: Fundic Stomach Rugae

  11. Mucosa of the Fundic Stomach Muscularis mucosae Lymphatic nodule

  12. #156, #157: Gastric glands Gastric pit lined by surface mucous cells Mucous neck cells Fundus or body

  13. #157: Body of the gastric glands

  14. #157: Base of the gastric glands Parietal cells Chief cells

  15. #162Pylolic StomachPylo-duodenal junction (arrow) Duodenum Pyloric sphincter muscle

  16. Fundic (gastric) glands: straight glands pit:gland=1:5 Cardiac glands: coiled (mucous) glands pit:gland=1:1 Pyloric glands: coiled (mucous) glands pit:gland=2~3:1

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