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strcuture of skin, contains chemicals that kill bacteria, slows down water…

- - - - found all over the skin except palm, soles and lips
      - secretes sebum
        
        keeps the skin soft and moist and prevents hair from becoming brittle
    - - widely distributed
      - produces sweat
      - regulates body temperature through the evaporation of sweat
    - - hair follicle
        
        extension of epidermis deep into the dermis which holds hair root and hair bulb
        
        arrector pili connect each side of the hair follicle to the dermal tissue
        
        functions
        
        hair bulb in follicle gives rise to hair
        
        plays an important role in tissue repair
      - hair on scalp shields skin against sunlight
      - eyebrows prevent sweat from running into eyes
      - eyelashes protect eyes from foreign materials
      - hair in nose and ears keep out foreign particles