Across
- 1. What makes the heartbeat sound?
- 2. What pumps blood out of the Heart?
- 4. The Heart's muscle is made of...
- 6. The heart chamber that moves blood to the ventricles
- 8. What is the main artery?
- 9. What signals the heart to beat?
Down
- 1. What carries blood to the right atrium?
- 2. What brings blood to the Heart?
- 3. What is the smallest type of blood vessel?
- 5. What separates the ventricles?
- 7. What takes blood away from the Heart?