Across
- 1. The sinus node that allows your heart to beat
- 4. The low-pressure part of the heart
- 6. carries blood to the heart
- 8. A thick wall of tissue that separates the heart into two sides
- 9. A large vein that carries blood to the heart
- 11. The high-pressure part of the heart
Down
- 2. carries blood away from the heart
- 3. Only found in the heart
- 5. The smallest type of blood vessel
- 7. Lets blood into the ventricle from the atrium
- 10. The largest blood vessel in the body