Across
- 3. The word we use to say the heart chambers get bigger and can fill with blood
- 7. Supplies the heart itself with oxygen
- 8. An awesome Bio teacher :)
- 9. Brings deoxygenated blood to the heart
- 11. Blood vessel carrying oxygenated blood away from the heart
- 12. Bottom chamber of the heart
Down
- 1. The only vein to carry oxygenated blood
- 2. The word we use to say the heart chambers are getting smaller and forcing blood to move
- 4. Has a thick wall to withstand the high pressure
- 5. Very small and thin blood vessel so oxygen can diffuse out
- 6. The only artery that carries deoxygenated blood
- 9. A blood vessel with valves to keep blood flowing in the correct direction
- 10. Top chamber of the heart