1. WARM UP 1.Based on what you learned in our last unit, describe three general characteristics of all epithelial tissue. 2.List three different places in the body where you can find epithelial tissue. 3.Make a prediction about how epithelial tissue might be important in the digestive, cardiovascular, or respiratory systems.

2. Epithelial Tissue

3. General Characteristics Next to a free surface Packed close together –Leak-proof Simple (one layer) or stratifed (many layers)

4. Types of Epithelial Tissue Simple squamous –Thin, flattened –Rapid diffusion –Lungs, blood vessels

5. Types of Epithelial Tissue Simple columnar –Rectangular Villi for surface area –Secretion and absorption –Small intestine

6. Types of Epithelial Tissue Pseudostratified columnar –Single layer, multiple nuclei –Cilia to filter debris –Respiratory pathways

7. Types of Epithelial Tissue Glandular –Cuboidal –Secretion –Digestive organs (exocrine) and hormone glands (endocrine)

8. WRAP UP List three different types of epithelial tissue you learned today, and one place in the body where each is found.

9. WARM UP “Let us move on and step out boldly, though it be into the night, and we can scarcely see the way.” – Charles B. Newcomb 1.What does this mean to you? 2.How do you feel about the different things you will be experiencing over the next year?

10. WRAP UP Compare and contrast simple columnar epithelium and pseudostratified columnar epithelium.