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Organ Trail : How It Protects Us From The Outside World?

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Organ Trail Epithelium: Tissue that covers the whole surface of the body. composed of tightly packed cells arranged in one or more layer, and forms covering, or living of all internal and external body surface. function: 1: It protects us from the outside world – skin. 2: Absorbs – stomach and intestinal lining 3: Filters 5 the kidney 4: Secretes – forms glands Characteristics: Closely attached to each other forming a protective barrier 2) Always has one free surface open to outside the body or inside an internal organ 3) Always had one fixed part to connective tissue underneath. classification: 1: by shape A: squamous - flat and scale-like B: cuboidal - tall and wide C: columnar - column D: epithelium - 1 layer of cells E: stratified epithelium - layers The 4 Basic Tissue Types in the Human Body: II. CONNECTIVE TISSUE Functions jobs: 1: Wraps around and organ to protect it 2: Stores nutrients 3: supports fall your organs 4: tendon and ligaments protects joints and attached muscles to bone and each other 5: Runs through organ and in deep layers of skin giving strength The 3 Elements of Connective Tissue: 1: Ground substance – gel around cells and fibers 2: Fibers – provide strength, and support 3: and Cells 2 Kinds of Connective Tissue: A: Areolar Connective Tissue – cushion around organs, loose arrangement of cells and fibers. B: Adipose Tissue – storehouse for

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