1. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Tissues  Groups of cells similar in structure and function  The four types of tissues  Epithelial  Connective  Muscle  Nerve

2. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Epithelial Tissue Figure 4.1a continuous sheets- tight junctions Avascular Secretion, absorption lining & covering free surface (lumen) basement membrane (basal lamina)

3. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Classification of Epithelia cell shape & arrangement Shape: Squamous Cuboidal columnar Layers: Single= Simple Many = Stratified Pseudostratified Figure 4.1b

4. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Epithelia: Simple Squamous Figure 4.2a

5. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Epithelia: Simple Cuboidal Figure 4.2b

6. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Epithelia: Simple Columnar Figure 4.2c

7. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Epithelia: Stratified Squamous Figure 4.2e

8. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Epithelia: Pseudostratified Columnar Figure 4.2d

9. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Epithelia: Transitional  Lines the urinary bladder Stretches to permit the distension of the urinary bladder

10. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Epithelia: Transitional Figure 4.2f