Across
- 3. the regular thump of the heart
- 4. blood rich in oxygen
- 5. the movement of blood around the body
- 8. tubes that carry bloods
- 9. organ that pumps blood
- 13. the heart and blood vessels together
- 15. the beat felt when the heart pumps blood
- 17. another word for the blood moving system
- 18. tiny blood vessels where gas exchange happens
- 20. number of heartbeats per minute
Down
- 1. the area the heart is located
- 2. of the heart and blood vessels
- 6. the force of blood against vessel walls
- 7. flow of blood bring oxygen suddenly becomes blocked
- 10. help keep the heart strong
- 11. upper champers of the heart
- 12. carrys blood to the heart
- 14. carries blood away from the heart
- 16. one complete contraction of the heart
- 19. how fast your heart beats in one minute