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Histology Slides for the GI Track

Histology Slides for the GI Track. Slides are presented in order of magnification As you view the following slides make sure you can accomplish these goals. Can you identify the organ from which the tissue sample was taken?

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Histology Slides for the GI Track

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  1. Histology Slides for the GI Track • Slides are presented in order of magnification • As you view the following slides make sure you can accomplish these goals. • Can you identify the organ from which the tissue sample was taken? • Can you identify the specific structures or layers indicates by the numbered arrows or brackets? • At the end of a sequence you will find the answers to the above for each organ.

  2. Organ? 40X 3 1 2 4 5 6 7

  3. Organ 100X 1 2 3 4 5

  4. Organ 100X 1 4 2 3

  5. Organ? 400X 1 2 3 4

  6. Tissue from Esophagus slides 1-4 Slide # 1 • Nonkeratinized Stratified Squamous • Lamina Propria • General layer called the Mucosa • Muscularis Mucosae • Submucosal Mucous Gland • Submucosa • Circular smooth muscle layer • Slide # 2 • Nonkeratinized Stratified Squamous • Lamina Propria • Muscularis Mucosae • Submucosal Mucous Gland • Submucosa

  7. Tissue from Esophagus slides 1-4 Slide # 3 • Circular smooth muscle layer • Longitudinal smooth muscle layer • Adventitia • Mucularis Externa • Slide # 4 • Nonkeratinized Stratified Squamous • Lamina Propria • Muscularis Mucosae • Submucosal Mucous Gland

  8. Organ or Organs? 100X 1 2 1 3 4

  9. Organ or Organs? 400X 1 2

  10. Slides 8-9 Esophageal-Gastric Junction Slide # 8 • Junction where epithelia changes from nonkeratinized stratified squamous to simple columnar. • Simple columnar • Nonkeratinized stratified squamous • Lumen • Slide # 9 • Simple columnar lining a gastric pit • Junction where epithelia changes from nonkeratinized • stratified squamous to simple columnar

  11. Fold and organ? 40X 1

  12. organ? 100X 1 2 4 3 5 6

  13. organ? 400X 1 2 3 4 5

  14. organ? 400X 9 8 2 7 3 1 4 5 6

  15. Slides 11-14 Stomach Slide # 11 Large fold is a Rugae • Gastric Mucosa • Slide # 12 • Simple columnar lining a gastric pit • Muscularis Mucosae • Lamina Propria • Oblique smooth muscle layer • Circular smooth muscle layer • Longitudinal smooth muscle layer

  16. Slides 11-14 Stomach Slide # 13 • Muscularis Mucosae • Submucosa • Oblique smooth muscle layer • Circular smooth muscle layer • Longitudinal smooth muscle layer • Slide # 14 • Muscularis Mucosae • G-cells at the bottom of a gastric pit • Submucosa • Lamina Propria • Parietal cells in a gastric pit • Chief cells in a gastric pit • Oblique smooth muscle layer • Circular smooth muscle layer • Longitudinal smooth muscle layer

  17. organ? 40X 1 2 2

  18. organ? 400X 2 1 3

  19. organ? 400X 2 3 4 1

  20. Slides 17-19 Liver Tissue Slide # 17 • Central Vein • Portal triads demonstration the boundary of the lobule • Slide # 18 • Central Vein • Sinusoids • Hepatocyte • Slide # 19 • Branch of the Hepatic Portal Vein • Bile duct • Branch of the Hepatic Artery • Portal Triad

  21. organ? 40X 2 1

  22. organ? 100X 1 3 2

  23. organ? 100X 1 2

  24. Slides 21-23 Pancreas Tissue Slide # 21 • Block of acinar cells called an acini • Pancinian Corpuscle • Slide # 22 • Block of acinar cells called an acini • Pancinian Corpuscle • Islet of Lanerhans • Slide # 23 • Acinar Cell • Islet of Lanerhans

  25. organ and folds? 40X 9 2 1 4 3 5 6 7 8

  26. organ? 100X 1 6 2 3 5 4

  27. organ? 400X 1 2 3 4 5

  28. Slides 25-27 Small Intestine - Duodenum Slide # 25 • Villus • Limina Propria • Lacteal • Crypt of Lieberkuhn • Submucosa • Visceral Peritoneum • Longitudinal smooth muscle layer • Circular smooth muscle layer • Plicae Circularis

  29. Slides 25-27 Small Intestine - Duodenum Slide # 26 • Villus • Limina Propria • Muscularis Mucosae • Brunner’s gland • Submucosa • Crypt of Lieberkuhn • Slide # 27 • Villus • Limina Propria • Goblet cells with mucous drop • Crypt of Lieberkuhn • Muscularis Mucosae

  30. organ? 100X 1 2 4 6 5 3

  31. organ? 400X 1 2

  32. Slides 30-31 Small Intestine - Ileum Slide # 30 • Villus • Peyer’s Patch • Muscularis Mucosae • Submucosa • Longitudinal smooth muscle layer • Circular smooth muscle layer • Slide # 31 • Muscularis Mucosae • Peyer’s Patch

  33. organ? 40X 1 2 3 5 4 6

  34. organ? 100X 1 2 3 5 4

  35. organ? 400X 1 3 2 4

  36. Slides 33-35 Large Intestine Slide # 33 • Intestinal Mucosa with intestinal pits or gland • Muscularis Mucosae • Submucosa • Longitudinal smooth muscle layer • Circular smooth muscle layer • Lymph node • Slide # 34 • Intestinal pit or gland • Muscilaris Mucosae • Submucosa • Longitudinal smooth muscle layer • Circular smooth muscle layer

  37. Slides 33-35 Large Intestine Slide # 35 • Intestinal pits with goblet cells • Lamina Propria • Muscularis Mucosae • Lumen of an intestinal pit or gland

  38. organ or organs? 40X 1

  39. organor organs? 100X 3 2 1 4

  40. organor organs? 400X 1 2

  41. Slides 38-40 Anorectal junction • Slide # 39 • Junction of the rectum and Anus • Simple Columnar cells of the Rectum • nonkeratinized stratified squamous of the Anus • Intestinal pit or gland Slide # 38 • Junction of the Rectum and Anus • Slide # 40 • Simple Columnar cells of the Rectum • nonkeratinized stratified squamous of the Anus

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