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Chapter 4

Chapter 4 - Term Definition Define tissues then name 4...

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Term: Define tissues, then name 4 primary ones Definition: Groups of cells with a common function 1. Epithelia 2. Connective tissues 3. Muscle 4. Nervous Term: What are the two basic purposes of epithelial tissues? Definition: 1. Line body cavities and cover surfaces 2. Glandular epithelia Term: Name the shapes of epithelial tissues Definition: Squamous -flattened cells -line vessels, part of lungs, body surface Cuboidal -cube shaped -form lining of tubules, glandular tissues Columnar -column shaped -line respiratory, digestive, reproductive tracts Term: What are the layers to epithelial tissues? Definition: Simple/single-layered -Line glands, respiratory, digestive, reproductive systems Stratified/multiple layered -provide protection, as in the skin suface
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Term: Define cell junctions and name the types Definition: Hold adjacent cells together. Tight junctions -seal plasma membranes tightly together -digestive tract lining, bladder lining Adhesion junctions/spot desmosomes -permit some movement between cells
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