6 Weeks Review

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Across
  1. 5. body system that brings in oxygen and releases carbon dioxide
  2. 8. body system that covers and protects the entire body
  3. 9. two air passages that connects to the lung
  4. 11. exchange of oxygen and carbon dioxide
  5. 17. structures made of tough tissue that connect muscle to boned together bones at joints to allow movement
  6. 18. innermost layer of the skin
Down
  1. 1. middle layer of the skin, which contains hair follicles
  2. 2. strong bands of tissue that hold together bones at joints to allow movement
  3. 3. body system that helps the body move and aids other body systems
  4. 4. blood vessels that carry oxygen-rich blood
  5. 6. liquid part of blood
  6. 7. muscle beneath the lungs that contracts and relaxes to help the chest expand when a person breathes
  7. 10. body system that moves blood through the body using the heart
  8. 12. deliver oxygen and connects arteries and veins
  9. 13. body system made up of 206 bones that provides structure, shape, and protection to the body
  10. 14. blood vessels that carry oxygen-poor blood
  11. 15. outermost layer of the skin
  12. 16. where two or more bones meet and are held together