Human Body Systems

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Across
  1. 3. Blood vessels that deliver oxygenated blood from the heart to tissues
  2. 6. Lower chamber of the heart.
  3. 7. The main passageway into the lungs.
  4. 8. Filters waste from the blood like urea, water, salt and proteins.
  5. 10. Group of organs.
  6. 12. Sacs in the lungs specialized for movement in the lungs.
  7. 14. Removes waste and turns into urine.
  8. 15. Upper chamber of the heart.
Down
  1. 1. Group of cells
  2. 2. Breaks down food.
  3. 4. Basic unit of life
  4. 5. Airways in the lungs that lead from the bronchi to the alveoli.
  5. 9. Large muscle at the bottom of the chest that helps with breathing.
  6. 11. Allows air to flow through to the lungs
  7. 13. Found in the kidney, little filter that blood goes through.