Heart

12345678
Across
  1. 5. What blood vessel takes blood back to the heart?
  2. 6. What causes antibody production
  3. 7. What kind of blood vessel connect arteries and veins?
  4. 8. The right side of the heart has what type of blood?
Down
  1. 1. What blood vessel takes blood away from the heart?
  2. 2. The left side of the heart has what type of blood?
  3. 3. What helps with inflammatory response
  4. 4. What helps with immune serveilence