Circulatory System

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Across
  1. 2. each of the two lower chambers of the heart that pumps blood out of the heart
  2. 5. a vein carrying oxygenated blood from the lungs to the left atrium of the heart
  3. 9. an artery that travels to the lungs
  4. 11. blood carries this to your body's cells
Down
  1. 1. a group of cells located in the right atrium that sends out signals that make the heart muscle contract and that regulates heart rate.
  2. 3. smallest blood vessel found between arteries and veins
  3. 4. brings oxygen poor blood from the lower part of the body to the right atrium
  4. 6. blood vessels that travel to the heart
  5. 7. the wall of tissue that separates the right side of the heart from the left side of the heart
  6. 8. - the largest artery in the body
  7. 10. blood vessels that travel away from the heart