1. BIO132 Lab 6: Exercise 38 Digestive System
Figure 38.1 in 8th, 9th & 11th
Figure 38.2 in 10th edition

2. Figure 38.8

3. Figure 38.3
See Fig in 8th & 9th or Fig in 10th & 11th for teeth specifically

4. Figure 38.2 in 8th, 9th & 11th
Figure 38.1 in 10th edition

5. Stratified squamous epithelium
Lamina propria
Czura 2005
Stratified squamous epithelium
Esophageal glands
Esophagus
Adventitia
Note: depending on the region of esophagus sectioned there may be skeletal muscle present in the muscularis externa
Lumen
Muscularis mucosae
Muscularis externa
Submucosa
Mucosa
10X Objective
(100X)

6. Gastroesophageal Junction
4X Objective
(40X)
Gastroesophageal
Junction
Lumen
Esophagus
Stomach
10X Objective
(100X)
40X Objective
(400X)
Cardio-esophageal junction
Stratified squamous epithelium of esophagus
Simple columnar epithelium of stomach
Czura 2005

7. Simple columnar epithelium
Lumen
Stomach
4X Objective
(40X)
Mucosa
Submucosa
Muscularis mucosae
Muscularis externa
10X Objective
(100X)
40X Objective
(400X)
Gastric pit
Simple columnar epithelium
Lamina propria
Chief cell
Parietal cell
Lamina propria
Gastic gland
Czura 2005

8. Simple columnar epithelium
Duodenum
Goblet cell
Czura 2005
10X Objective
(100X)
Villus
Duodenal glands
Lumen
Crypt
Intestinal glands
Muscularis mucosae
Muscularis externa
Simple columnar epithelium
Lamina propria
Submucosa
Mucosa

9. Ileum 4X Objective 10X Objective Czura 2005 (40X) (100X) 40X Objective
Muscularis mucosae
Villus
Peyer’s Patch
Crypt
Lamina propria
Lumen
Goblet cell
Simple columnar epithelium
Muscularis externa
Submucosa
Mucosa
40X Objective
(400X)
Ileum

10. Simple columnar epithelium
Colon
Lumen
4X Objective
(40X)
Mucosa
Submucosa
Muscularis externa
Serosa
10X Objective
(100X)
40X Objective
(400X)
Simple columnar epithelium
Crypt
Muscularis mucosae
Lamina propria
Goblet cell
Czura 2005

11. Tooth (decalcified) 4X Objective (40X) Czura 2005 Peridontal ligament
Cementum
Gingiva
Jaw Bone
Dentin
Enamel
4X Objective
(40X)
Pulp cavity
Czura 2005
Root
Crown

12. Parotid Salivary Gland
4X Objective
(40X)
Parotid Salivary Gland
10X Objective
(100X)
40X Objective
(400X)
Salivary duct
Mucus cells
Serous cells
Czura 2005

13. Sublingual Salivary Gland
4X Objective
(40X)
Sublingual Salivary Gland
10X Objective
(100X)
40X Objective
(400X)
Mucus cells
Salivary duct
Serous cells
Czura 2005

14. Submandibular Salivary Gland
4X Objective
(40X)
Submandibular
Salivary Gland
10X Objective
(100X)
40X Objective
(400X)
Salivary duct
Mucus cells
Serous cells
Czura 2005

15. Liver 4X Objective (40X) 10X Objective (100X) 40X Objective (400X)
Central vein
Triad
Lobule
10X Objective
(100X)
40X Objective
(400X)
Hepatocyte
Sinusoid
Czura 2005

16. Liver stained for Kupffer cells
40X Objective
(400X)
Central Vein
Hepatocyte
Kupffer cell
Sinusoid
Czura 2005

17. Cirrhosis of the Liver 4X Objective (40X) 10X Objective (100X)
Two pathological conditions are visible in this specimen:
Fatty deposits (white holes) which destroy/replace hepatocytes, and a chronic inflammation as evidenced by dense collection of lymphocytes (purple clustered nuclei are visible)
10X Objective
(100X)
40X Objective
(400X)
Fatty deposits
Lymphocytes
Czura 2005

18. Pancreas 4X Objective (40X) 10X Objective (100X) 40X Objective (400X)
Pancreatic islet
(endocrine cells)
Pancreatic islet
Acinar tissue
Acinar tissue
(exocrine cells)
Czura 2005