Circulatory system

12345678
Across
  1. 4. The heart is an...
  2. 5. The left side of the heart pumps blood with more oxygen to the...
  3. 6. They fight germs
  4. 7. They carry oxygen
Down
  1. 1. They help stop bleeding
  2. 2. The heart works like a ...
  3. 3. They transport blood around your body
  4. 8. The right side of the heart pumps blood with less oxygen to the...