Epithelial Tissues - b) Stratified epithelium...

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AP Biology Epithelial Tissues 1) Key terms for Understanding a) Shapes Cuboidal = Dice Columnar = Bricks Squamous = Flat Floor Tiles b) Number of Layers Simple = One layer Stratified = Multiple layers Pseudostratified = Not quite multiple layers 2) Epithelial Tissues: Tissues that cover the outside of something. a) Simple epithelium (One-layer Tissues) A. Simple columnar epithelium (One-layer bricks) Secretes digestive juices and absorbs nutrients Found in the digestive tracts B. Simple squamous epithelium (One-layer flat floor tiles) Very thin tissue; therefore effective in the exchange of material by diffusion. Found in blood vessels and lungs
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Unformatted text preview: b) Stratified epithelium (Multiple-layer Tissues) A. Stratified columnar epithelium (Multiple-layer bricks) Covers the inner surface of urethra (Excretion) B. Stratified squamous epithelium (Mutliple-layer flat floor titles) Very quick regeneration occurs Found in the parts those are easily eroded (such as esophagus, stomach…) c) Pseudostratified ciliated columnar epithelium Forms a mucous, sticky membrane on the respiratory tract The beating cilia move quickly to keep the lungs clean d) Cubodial epithelium (Dice-shape epithelium) Cells specialized in secretion – endocrine system (hormones)...
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This note was uploaded on 02/11/2012 for the course ZOOLOGY 152 taught by Professor Stephengammie during the Fall '11 term at University of Wisconsin.

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