The Heart

12345678910
Across
  1. 1. The muscular organ responsible for pumping blood
  2. 5. Chambers that holds blood about to leave the heart
  3. 8. This heart structure receives deoxygenated blood
  4. 9. Deoxygenated blood is rich in
  5. 10. This blood has low oxygen levels
Down
  1. 2. It carries oxygenated blood away from the heart
  2. 3. This heart structure receives oxygenated blood
  3. 4. This type of circulatory system is characterized by two separate circuits
  4. 6. Term used to describe blood with high levels of oxygen
  5. 7. This vena cava brings blood from the upper body