The Circulatory System

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