1. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Human Anatomy & Physiology SEVENTH EDITION Elaine N. Marieb Katja Hoehn PowerPoint ® Lecture Slides prepared by Vince Austin, Bluegrass Technical and Community College C H A P T E R 4 Tissue: The Living Fabric P A R T A

2. 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

3. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Epithelial Tissue  Protection- skin  Absorption-digestive tract  Filtration - kidneys  Excretion - kidneys  Secretion - glands  Sensory reception - skin

4. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Simple Squamous – structural characteristics  Single layer  Flattened cells

5. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Simple Squamous-Examples in the Body  Allows diffusion, filtration, secretion into serosa  Located in air sacs of lungs, lining of heart, blood vessels, lymphatic vessels, body cavity

6. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Classification of Epithelia  Simple Figure 4.1a

7. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Simple Cuboidal Epithelium  Single layer  Cube like cells

8. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Simple Cuboidal epithelium  Secretion and absorption  Found in kidney tubules, small gland ducts, ovary surface

9. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Simple Columnar Epithelium  Single layer tall cells  Some have cilia

10. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Simple Columnar-Function and Location  Absorption, secretion of mucus, enzymes  Found in digestive tract, gallbladder, bronchi, uterine tubes

11. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Classification of Epithelia  Squamous, cuboidal, or columnar Figure 4.1b

12. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Stratified Squamous  Several cell layers  Basal cells are cuboidal or columnar  Surface are squamous  Produce cells of superficial layers  Protects underlying tissue  Esophagus, mouth, vagina, skin

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

14. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Pseudostratified columnar epithelium  Single layer with different heights  Functions in secretion (mucus)  Located in vas deferens (male sperm carrying ducts), trachea, upper respiratory tract

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

16. Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Transitional Epithelium  Looks like stratified squamous and cuboidal  Functions to stretch and allow distension of urinary organ  Lines ureters, bladder, and part of urethra

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