Biology 110: Anatomy and Physiology II Gross and Microscopic Anatomy of the Digestive System Follow this link to Histology of the Gastrointestinal System and answer the following questions. Be able to identify and describe the layers and histology of the gastrointestinal (GI) tract wall. 1. What are the four layers of the GI tract wall? 2. What are the 3 layers of the mucosa? 3. What are the two types of epithelial tissue along the digestive tract and in which organs are they found Oral Cavity Using Fig. 27-1 in your lab manual as a reference, identify structures 1-11. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11.
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Layers of the GI tract wall: There are four main layers in the gastrointestinal tract wall. These are: - **Mucosa** - **Submucosa** - **Muscularis externa** - **Serosa** (or Adventitia in some regions) Show more…
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