Across
- 3. small collective chambers in the heart
- 5. when the heart is deprived of oxygen
- 7. Significant escape of blood from the system
- 9. Temporary chest pain often after physical activity
- 12. description of blood high in oxygen
- 14. description of blood low in oxygen
- 15. An organ the size of a clenched fist
- 17. Blood flowing through the system
Down
- 1. An organ which provides oxygen for the system
- 2. blood vessels not visible to the naked eye
- 4. a gas we breathe out
- 6. Carries blood back to the heart
- 8. a gas we breathe in
- 10. Largest artery in the human body
- 11. two chambers at the bottom of the heart
- 13. Carries blood away from the heart
- 16. the state of matter of oxygen