Across
- 4. a large vein that carries deoxygenated blood to the heart
- 8. a device for regulating heart muscle contractions
- 9. controls the flow of liquid/blood
- 11. the smallest type of blood vessel
Down
- 1. the two lower chambers of the heart
- 2. type of blood vessel that usually transports oxygenated blood
- 3. dividing wall between chambers of the heart
- 5. artery that supplies oxygenated blood to the body straight from the heart
- 6. the two upper chambers of the heart
- 7. muscle that contracts to make the heart pump blood
- 10. type of blood vessel that usually carries deoxygenated blood back to the heart