The Circulatory System

12345678910111213
Across
  1. 2. carry blood away from the heart
  2. 4. separates the left and right side of the heart
  3. 7. low-oxygen blood
  4. 8. transports oxygenated blood from heart to body
  5. 9. lower chamber of the heart
  6. 10. clots the blood
  7. 11. upper chamber of the heart
  8. 12. carries blood towards the heart
  9. 13. flows through blood vessels
Down
  1. 1. high-oxygen blood
  2. 3. organ that pumps blood around the body
  3. 5. wide in veins, narrow in arteries
  4. 6. connect arteries and veins
  5. 11. fights infection
  6. 12. prevents backflow in veins