1. EPITHELIAL TISSUE (EPITHELIUM)

2. Epithelial tissue (Epithelium)  Lining, covering and glandular tissue of the body

3. Epithelial tissue (Epithelium)  Examples:  Skin protects against bacteria/chemicals  Lining of the respiratory tract-cilia to sweep mucus  Kidney-epithelium absorbs and filters  Secretion-glands

4. Epithelial tissue (Epithelium)

10.  Forms membranes for filtration/exchange

12.  Glands/Ducts  Salivary Glands  Ducts in Pancreas  Kidney tubules  Surface of ovaries

14.  Line digestive tract  Goblet cells: produce mucus

16.  Some cells are shorter than others  Absorption and secretion  Ciliated variety lines the respiratory tract Goblet cells make mucus Cilia move mucus

17. Pseudostratified (ciliated) columnar

18.  Several layers of cells  Can stand friction: Esophagus Mouth skin

20.  Cells at base are cuboidal or columnar, free surface varies  Tissue can stretch  Lines the: Urinary bladder Ureters Part of urethra

22. Extracellular matrix  Produced by connective tissue cells  Secreted to exterior  Ground substance, proteins and large polysaccharides  Matrix fibers  Gel like, to firm, to rock hard

23. Extracellular matrix

25. Types of Connective Tissue  Bone  Cartilage  Dense Connective Tissue  Loose Connective Tissue  Blood