Human Body

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Across
  1. 3. Liquid released by glands in the mouth.
  2. 5. Blood vessels that carry deoxygenated blood.
  3. 8. Longest bone in the human body.
  4. 9. Group of tissues that work together.
  5. 10. Basic living units of the body.
Down
  1. 1. Smallest blood vessels.
  2. 2. The voice box
  3. 4. Body's largest gland.
  4. 6. Where the brain is located.
  5. 7. Hard substance found in hair and nails.