Across
- 5. Bloodvessels that carry blood from heart to body
- 7. Abnormal multiplication of white blood
- 8. gas exchange of fish takes place in
- 10. gas exchange of amphibians on land takes place in
- 12. top chamber of human's heart
- 13. heart disease because incomplete development
- 14. bottom chamber of human's heart
Down
- 1. illness that makes heart has to pump harder
- 2. blood vessel throbbing caused by heart contraction
- 3. illness when our body has low red blood cell
- 4. illness caused by diet high in fat
- 6. gas exchange of amphibians underwater takes place in
- 9. the other name for circulatory system
- 11. part of heart that control the direction of blood flow