4 - Human Body Systems Part 1

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Across
  1. 3. two organs important in the respiratory system.
  2. 6. gas released into the air when exhaling.
  3. 8. gas needed from the air.
  4. 9. organ used for movement.
  5. 10. where air enters the body.
  6. 13. tube that carries air to the lungs.
  7. 15. system that helps move materials in blood around the body.
  8. 16. system that gets oxygen from the air and releases carbon dioxide.
  9. 18. important muscle used when breathing.
  10. 19. pockets in the lungs that are covered in blood vessels.
Down
  1. 1. system that helps move bones, blood, lungs, and food.
  2. 2. tubes that hold blood in the body.
  3. 4. muscles you can control.
  4. 5. muscles you cannot control.
  5. 6. important mineral for strong bones.
  6. 7. strong organ that gives support and shape.
  7. 11. organ that pumps blood around the body.
  8. 12. area where two bones connect.
  9. 14. liquid that carries oxygen and other materials.
  10. 17. system that provides shape and structure, protects important organs, and works with muscles for movement.