| Term 
 | Definition 
 
        | -protection -body temp
 -vitamin D
 -sensation
 -excretion
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        | Term 
 | Definition 
 
        | Keritonized Stratified Squamous, epithelial tissue, thinner |  | 
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        | Term 
 | Definition 
 
        | Connective tissue, thicker layer, made of upper papillary and lower reticular layer |  | 
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        | Term 
 | Definition 
 
        | subcutaneous layer, underneath dermis, loose areolar and adipose connective tissue |  | 
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        | Term 
 | Definition 
 
        | single layer of cuboidal or columnar cells |  | 
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        | Term 
 | Definition 
 
        | 8 to 10 layers of many sided cells |  | 
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        | Term 
 | Definition 
 
        | 2 to 5 layers of diamond shaped cells |  | 
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        | Term 
 | Definition 
 
        | several layers of dead cells with indistinct boundaries |  | 
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        | Term 
 | Definition 
 
        | 25 or more layers of dead squamous cells |  | 
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        | Term 
 | Definition 
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        | Term 
 | Definition 
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        | Term 
 | Definition 
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        | Term 
 | Definition 
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        | Term 
 | Definition 
 
        | stratum lucidum is absent, only 4 layers, all body except palms, palmar surfaces or digits and soles |  | 
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        | Term 
 | Definition 
 
        | melanin is produced by melanocytes, tyrosine-> dopaquinone, hair color determined genetically |  | 
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        | Term 
 | Definition 
 
        | due to recessive gene, an inability to produce tyrosine, |  | 
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        | Term 
 | Definition 
 
        | yellow pigment, cyanosis is caused by a decrease in blood flow |  | 
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        | Term 
 | Definition 
 
        | ridges on the skin where sweat pores open |  | 
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        | Term 
 | Definition 
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        | Term 
 | Definition 
 
        | grows inside a hair follicle, root expanded to form a bulb. Inside hair bulb is undifferentiated epithelial cells, the matrix.  Hair in cross section consist of cuticle, cortex, and medulla.  Associated with each hair follicle are smooth muscle called arrector pili. |  | 
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        | Term 
 | Definition 
 
        | Merocrine sweat glands are simple, coiled tubular glands.  Sweat is mostly water but also contain some slat, urea, uric acid, and ammonia. |  | 
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        | Term 
 | Definition 
 
        | open into hair follicle.  There are found in the axilla, and genitalia.  They become active at puberty. |  | 
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        | Term 
 | Definition 
 
        | are alveolar glands that produce sebum. They are classified as holocrine glands |  | 
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