Across
- 6. this blood has low oxygen levels
- 7. blood carrying vessels with valves
- 10. tiny blood vessels
- 11. this sound caused by leaky valves
- 12. chambers that holds blood about leave the heart
- 14. valve between Right atrium and ventricle
- 15. valve between left atrium and ventricle
Down
- 1. muscle in the heart
- 2. carries oxygen rich blood to the blood
- 3. this vena cava brings blood from upper body
- 4. blood flows into this, past the aortic valve
- 5. membrane around heart
- 8. arteries carry this with blood to the body
- 9. keeps blood from back flowing
- 13. receiving chambers for blood from out in the body