Skin

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Across
  1. 2. a cell containing granules of protein keratin
  2. 3. continually renews and replaces itself by cell division
  3. 5. tiny muscle that pulls hair up when body is cold
  4. 6. drops of perspiration ooze from sweat pores on skin surfaces
  5. 7. layer containing blood vessels, glands, and nerve endings
Down
  1. 1. waterproofing protein
  2. 4. cornified layer of flat, dead, flakelike skin cells
  3. 6. is one of the largest organs in the body weighing 6-8lb