Across
- 3. Helps blood to clot
- 8. Carries blood from lungs to the left atrium
- 10. The artery in the neck used to detect pulse
- 11. The stage when the heart fills with blood
- 13. Carries blood from right ventricle to the lungs
- 14. Cell that carries oxygen throughout the body
- 15. Procedure which involves inflating a small balloon to open a clogged artery
- 17. Lower chambers of the heart
- 18. Upper chambers of the heart
- 19. Muscular organ that pumps blood throughout the body
Down
- 1. Cell that fights infection
- 2. Consists mostly of water, makes up 55% of blood content
- 4. Blood vessel that carries blood away from the heart
- 5. The circuit which delivers blood to the body
- 6. In veins, prevents back flow of blood
- 7. The stage when the heart contracts
- 9. Smallest of the blood vessels, where gas exchange occurs
- 12. Instrument that detects electrical activity of the heart
- 16. Largest of the arteries
- 17. Blood vessel that carries blood to the heart