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        | space inside a tube (as in blood vessel, hollow organ etc) |  | Definition 
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        | How can epitheleal tissue be classified? |  | Definition 
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 | Definition 
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 | Definition 
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        | How can epithelial tissue be shaped? |  | Definition 
 
        | squamous, cuboidal, or columnar |  | 
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 | Definition 
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        | forms the outer layer of our skin and contains keratin |  | Definition 
 
        | stratified squamous epithelium |  | 
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 | Definition 
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        | usually present to push materials along |  | Definition 
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        | What are the ductless glands that secrete hormones directly into interstitial fluid for a direct path into the bloodstream? |  | Definition 
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        | Term 
 
        | What secretes into ducts that open onto an epithelial surface (sweat glands)? |  | Definition 
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        | Term 
 
        | What are the modes of secretion? |  | Definition 
 
        | merocrine, apocrine, holocrine |  | 
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        | Term 
 
        | product is released from gland by exocytosis |  | Definition 
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        | Term 
 
        | involves loss of cytoplasm with secretion |  | Definition 
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        | entire cell contents are released as the cell bursts |  | Definition 
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        | What secretes a watery solution with enzymes? |  | Definition 
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        | Term 
 
        | What secretes a sticky, stringy mucous? |  | Definition 
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 | Definition 
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        | connects epithelium to the rest of the body (bone, fat, blood, cartilage, lymph, etc;) |  | Definition 
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        | most abundant permanent resident connective tissue cell |  | Definition 
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        | "big eater" scavenger cells that engulf pathogens or damaged cells |  | Definition 
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 | Definition 
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        | synthesize and store the brown pigment melanin |  | Definition 
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        | small, mobile connective tissue cells common near blood vessels and secrete histamine and heparin after injury or infection to cause inflammatory reactions |  | Definition 
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        | Term 
 
        | What connects muscle to bone? |  | Definition 
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        | Term 
 
        | What connects bone to bone? |  | Definition 
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        | Term 
 
        | What provides padding, insulates, protects (kidneys) |  | Definition 
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