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Digestive System Cat, Histology and Models

Digestive System Cat, Histology and Models. Glands and Tonsils on the Models. Submandibular gland Sublingual gland Parotid gland Palatine tonsil Pharyngeal tonsil. Glands. Parotid gland Submandibular. Glands. Sublingual Submandibular. Pharyngeal tonsil. Palatine tonsil. Uvula.

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Digestive System Cat, Histology and Models

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  1. Digestive System Cat, Histology and Models

  2. Glands and Tonsils on the Models • Submandibular gland • Sublingual gland • Parotid gland • Palatine tonsil • Pharyngeal tonsil

  3. Glands • Parotid gland • Submandibular

  4. Glands • Sublingual • Submandibular

  5. Pharyngeal tonsil Palatine tonsil

  6. Uvula Lingual frenulum

  7. Stomach Cardiac region Fundus region Lesser curvature Body region Greater curvature Pyloric region

  8. Stomach Pyloric sphincter Plicae circularis Rugae Duodenum

  9. PANCREAS AND SPLEEN MODELS • Kidney • Gall bladder • Pancreas • spleen (function is to remove foreign antigens and aging RBC’s) • duodenum • plicae circularis

  10. Spleen Plicae circularis Pancreas Duodenum

  11. Pancreas Gall bladder Spleen Kidney Plicae circularis Duodenum

  12. GI MODEL • Stomach • Pancreas • Spleen • Pyloric sphincter • circular folds (known as plicae circularis; these are macroscopic folds in the mucosa) • ascending colon • transverse colon • descending colon • tenia coli • Jejunum (middle part of small intestine) • Ileum • Cecum • Ileocecal valve • Appendix • Rectum •  NOTE: Plicae circularis, microvilli, and villi all increase the surface area of the small intestinal lining

  13. GI Model

  14. Pyloric sphincter Stomach Duodenum Spleen Pancreas Plicae circularis

  15. Transverse colon Tenia coli Ascending colon Descending colon Jejunum Rectum

  16. Ileocecal valve Ileum Cecum Plicae circularis Appendix Tenia coli Rectum

  17. INTESTINE MODEL • Stomach • Pancreas • Spleen • Pyloric sphincter • circular folds (known as plicae circularis; these are macroscopic folds in the mucosa) • ascending colon • transverse colon • descending colon • tenia coli • Jejunum (middle part of small intestine) • Ileum • Cecum • Ileocecal valve • Appendix • Rectum •  NOTE: Plicae circularis, microvilli, and villi all increase the surface area of the small intestinal lining

  18. Duodenum Pancreas Greater Omentum Tenia coli Transverse colon Jejunum Cecum

  19. Pancreas Common bile duct Duodenum Tenia coli Descending colon Mesentery Appendix Ascending colon Cecum Sigmoid colon (first half)

  20. Other half of the Sigmoid colon

  21. Intestine Common Bile Duct Mesentery Tenia coli

  22. Jejunum

  23. Descending colon Ascending colon Mesentery Cecum Appendix Sigmoid colon Rectum

  24. Posterior View Duodenum Pancreas Ascending colon Descending colon Mesentery Cecum Appendix Sigmoid colon Rectum

  25. Liver Models • gall bladder • cystic duct • common bile duct • falciform ligament

  26. Liver CYSTIC DUCT, GALL BLADDER COMMON BILE DUCT (has been cut) Falciform ligament

  27. Liver COMMON BILE DUCT (has been cut) CYSTIC DUCT, GALL BLADDER Falciform ligament

  28. Liver Cystic duct Gall bladder Pancreas Duodenum Common Bile duct

  29. Central vein Liver Lobule Hepatic Triad: artery, vein, bile duct Sinusoids with Kupfer cells (macrophages)

  30. Intestinal Villus • Villus • Lacteal • Intestinal crypt • Mucosa with simple columnar epithelium

  31. SLIDES • Salivary gland • Tongue • taste bud • Small Intestine • Villi • Intestinal crypt

  32. Salivary gland

  33. Salivary gland

  34. Tongue Taste buds

  35. SLIDES • Small intestine layers • Mucosa • Submucosa • Muscularis externa • Inner circular layer • Outer longitudinal layer • Serosa

  36. Serosa Mucosa Muscularis Externa Submucosa Inner circular layer Outer longitudinal layer

  37. SLIDES • Small intestine • Villi, microvilli, and plicae circularis: (Serve to increase the surface area of the small intestine) • Intestinal crypts

  38. Small Intestine Villus Intestinal crypt

  39. SLIDES • Liver: the functional unit of the liver is the lobule. • central vein

  40. Liver Lobules

  41. Liver Lobule • Central vein

  42. Liver

  43. SLIDES • Spleen: removes foreign antigens and aging RBC's • Red pulp • White pulp • Pancreas • Islets • Acini • Be able to tell the difference between liver, spleen, pancreas, and kidney slides!

  44. Spleen

  45. Spleen Red Pulp White pulp

  46. Pancreas Islet of Langerhans (secretes insulin)

  47. Pancreas Acinar cells (secrete digestive enzymes) Islet of Langerhans (secretes insulin)

  48. Pancreas: don’t get this confused with a glomerulus in the kidney!

  49. Pancreas Kidney

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