Body Systems

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Across
  1. 2. Organ that filters waste from blood
  2. 7. Tiny air sacs in the lungs where gas exchange occurs
  3. 8. Blood vessels that carry blood away from the heart
  4. 10. Passages that carry air to your lungs (8 letters)
  5. 11. System that breaks down food
Down
  1. 1. System that sends messages through your body
  2. 3. Organ that pumps blood
  3. 4. Part of the nervous system in your skull
  4. 5. Lower chamber of the heart
  5. 6. Muscle that helps you breathe
  6. 9. Tube that carries food from your mouth to your stomach