Across
- 4. connect arteries and veins
- 5. vein carrying deoxygenated blood back to heart
- 7. air sacs in the lungs
- 9. aortic and pulmonary valves control flow out
- 10. heart is this size
- 11. provides organs tissues and cells with oxygen
- 13. blue color of blood to the heart
- 15. the pump
- 17. where oxygen and nutrients picked up by blood
- 18. one thing the circulatory system delivers
- 19. abnormal heart rate
Down
- 1. another name for the system with the heart
- 2. main artery of heart carries blood to body
- 3. sends blood to the rest of body and back
- 6. action to control blood flow
- 8. part of body of Inferior Vena Cava
- 12. arteries, veins and capillaries
- 14. red color of blood from the heart moves in this
- 16. sends blood from the heart to lungs and back