1. Oral cavity proper
Internal nares
Fauces
Oral vestibule
Esophagus
Oropharynx

2. Auditory /
Pharyngo-
Tympanic tube
Cribiform plate of ethmoid
Frontal sinus
Sphenoidal sinus
Nasophayngeal
tonsil
Chonchae / turbinates
Soft palate
Palatine
tonsil
Uvula
Lingual
tonsil
Epiglottis
Cricoid
cartilage

3. Enamel
Crown
Dentin
Neck
Gingiva
Cementum
Periodontal ligament
Alveolar bone
Root
Root canal with blood
vessels and nerves
Pulp cavity
With blood vessels and nerves

4. Common bile duct
Pancreatic duct
Duodenal papillus
(major)
Plica circulares
of duodenum
Hepatopancreatic ampulla in the duodenal wall

5. Gall bladder
Spleen
Liver
Cystic duct
Adrenal gland
Hepatic duct
Kidney
Duodenum
Head, body and tail of the pancreas

6. Pancreatic duct
Common Bile Duct
Plica circulares
Spleen
Duodenum

7. Common bile duct
Hepatic portal vein
Cystic duct
Hepatic artery
Hepatic duct
Round ligament
(remnant of umbilical vein)
Gall bladder

8. Lacteal
Villi
Simple columnar epithelium
Crypt of Lieberkuhn
Muscularis mucosae
Submucosa
Circular and
Longitudinal layers
Of muscularis externa
Serosa

9. Lacteal (green)
Villi
Lymphatic nodule/
Lymphatic follicle
Lamina propria
Muscularis mucosae
Submucosa with many
blood vessels
Circular layer of
Muscularis externa
Longitudinal layer
Of muscularis externa

10. Villi
Lacteals
Lymph nodule/follicle
Crypt of Lieberkuhn
Muscularis mucosae
Circular and
Longitudinal
layers of the
Muscularis externa

11. Ulcerative colitis
Diverticula
Adhesions
Irritable Bowel/
Spastic colon
Bacterial
infection
Crohn’s disease
(enteritis)
Cancer
Polyps
Appendicitis

12. Transverse colon
Haustra
Ascending colon
Descending
colon
Taenia coli
Ileocecal valve
Sigmoid colon
Cecum
Rectum

13. Inner oblique layer
of muscle
Middle circular layer
of muscle
Outer longitudinal
layer of muscle

14. Fundus
Cardia
Pylorus
Body

15. Pylorus
Esophagus
Site of lower esophageal
sphincter/Cardiac sphincter
Lesser curvature
Pyloric valve/
sphincter
Rugae
Greater curvature

16. Lingual tonsil
Sublingual gland
Submandibular gland

17. Circumvallate papillae
Lingual tonsil
Sublingual gland
Submandibular gland and duct

18. Lingual tonsil
Sublingual gland
Epiglottis
Submandibular gland
Arytenoid cartilage
Cricoid cartilage
Trachealis muscle

19. Enamel
Dentin
Gingiva
Pulp cavity
Alveolar bone
Root canal
Cementum
Apical foramen
Periodontal ligament

20. Lacteal
Villi
Simple columnar epithelium
Crypt of Lieberkuhn
Muscularis mucosae
Lymphatic vessels
Goblet cells
Circular and
Longitudinal layers
Of muscularis externa
Serosa

21. Submandibular duct
(Wharton)
Sublingual ducts
(Rhivinus)
Parotid gland
Parotid duct /
Stenson’s duct
Sublingual gland
Submandibular gland

22. Lesser omentum
Esophagus
Pylorus
Fundus
Body
Greater
omentum
Cardia

23. Low magnification of numerous filliform papillae on surface of tongue

24. Numerous Filliform Papillae (note lack of taste buds)
Skeletal Muscle of Tongue

25. Foliate or Fungiform Papillae
Taste Buds

26. Taste Buds
Stratified squamous epithelium
Foliate or Fungiform Papillae on Tongue

27. Gustatory Pore
Gustatory Cells In Taste Bud
Taste Buds
Stratified squamous epithelium

28. Gustatory pore with free nerve endings
Nuclei of Gustatory
Cells
Magnified Taste Buds

29. Liver
Central veins in center of
Hexagonal lobes
Portal triads

30. Liver
Portal triad containing branches of hepatic
portal vein, hepatic artery and bile duct
Hepatocytes

31. Numerous Peyer’s Patches
Duodenum
Jejenum
Ileum

32. Crypts of Lieberkuhn
Villi
Muscularis mucosae
Brunner’s or
Submucosal glands
Muscularis externa,
Circular layer

33. Muscularis
Submucosa
Mucosa
Villi
Lumen of
GI Tract
Outer Longitudinal Layer Inner Circular Layer
of the Muscularis Externa
Peyer’s Patches in
the submucosa
Of the ileum

34. Peyer’s Patches in
the submucosa
Muscularis (externa)
Submucosa
Ileum
Villi
Lumen

35. Parotid gland
Parotid duct /
Stenson’s duct
Sublingual gland
Submandibular gland