1. Digestive System 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. Stomach Fundus region Pyloric region Cardiac region Greater curvature Lesser curvature Body region

7. Stomach Pyloric sphincter Duodenum Rugae Plicae circularis

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

9. Duodenum Pancreas Spleen Plicae circularis

10. Spleen Kidney Pancreas Duodenum Gall bladder Plicae circularis

11. 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

12. GI Model

13. Pancreas Duodenum Pyloric sphincter Plicae circularis Stomach Spleen

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

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

16. 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

17. Greater Omentum Tenia coli Cecum PancreasDuodenum Jejunum Transverse colon

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

19. Other half of the Sigmoid colon

20. Liver Models gall bladder cystic duct common bile duct falciform ligament

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

22. SLIDES Salivary gland Tongue –taste bud Small Intestine –Villi –Intestinal crypt

23. Salivary gland

25. Tongue Taste buds

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

27. Small Intestine Villus Intestinal crypt

28. SLIDES Liver: the functional unit of the liver is the lobule. –central vein

29. Liver Lobules

30. Liver Lobule Central vein

31. Liver

32. 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!

33. Spleen

34. Red Pulp White pulp

35. Pancreas Islet of Langerhans (secretes insulin)

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

37. Glomerulus Tubule Kidney

38. Pancreas Kidney

39. Spleen Liver Red Pulp White pulp Central vein