Checkpoint Questions Ch. 4 Essay

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Aauzsa Mack 10/25/2014 AP2530 M1 Chapter 4 Checkpoint Questions 1. Tissue is a group of similar cells and their intercellular substance joined together to perform a specific function. 2. The four basic types of body tissues are epithelial, connective, muscle, and nervous. 3. Cell junctions are important because they are the point of contact between the plasma membranes of tissue cels. 4. The surface of epithelial cell that would face the lumen of an internal organ is the apical surface. 5. A) provide support for the overlying epithelial tissue B)The basal lamina secrete glycoproteins and the fibroblasts of the reticular lamina contains collagen proteins 6. The covering and lining epithelia may be layered as single, pseudostratified, or stratified. The three basic cell shapes of the covering and lining epithelia are squamous, cuboidal, and columnar. 7. Endothelium is located in the cavities of the heart, blood, vessels, and lymphatic blood vessels. Mesothelium lines the serous membranes. Both the endothelium and mesothelium is composed of simple squamous. 8. Function of goblet cells is to secrete mucus, function of microvilli is to increase surface area of the plasma membrane, and the function of cilia is to help move objects through a passageway in the body. 9. Keratin protects the skin from heat, microbes, and chemicals. 10. The function of connective tissue binds together, support, and strengthens other body tissues. 11. Fibroblasts, osteoblasts, and chondroblasts all are cells that secrete in the extracellular matrix. 12. Adipocytes stores fat, lymphocytes fight infection, and fibroblasts secrete fibers and ground substances. 13. Collagen fibers keep tendons and ligaments from pulling apart. Reticular fibers form a netlike internal framework for filtering organs such as the spleen. 14. Fibrocartilage is found in the
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