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