Bones, Muscles, and Skin

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Across
  1. 2. Tight-fitting membrane on your bones.
  2. 3. The thinnest layer of skin.
  3. 4. Pigment that gives your skin color.
  4. 7. Diseases that damage joints.
  5. 10. An organ that relaxes and contracts.
  6. 12. This is controlled by involuntary muscles.
  7. 13. Returns calcium and phosphorous into the bloodstream.
  8. 16. _________ muscle is found in the digestive tract.
  9. 17. Any place where two or more bones come together.
  10. 18. Reduces friction during movement of bones.
  11. 19. Attaches muscles to bone.
  12. 20. __________ muscle is found only in the heart.
  13. 22. Your body does this to help regulate your body temperature.
Down
  1. 1. Bone forming cells.
  2. 5. The ______ melanin that is present, the darker the color is.
  3. 6. Holds together bones and joints.
  4. 8. A bruise that has turned yellow means that it is _____________.
  5. 9. Any tear in the skin.
  6. 11. The _______ produced by muscle contractions helps keep your body temperature constant.
  7. 14. Skeletal muscle can be described as being ______.
  8. 15. The largest organ of the human body.
  9. 16. _________ muscle moves bones.
  10. 21. The layer of skin that contains blood vessels, nerves, muscles, and oil and sweat glands.