Across
- 2. organ that pumps blood
- 4. the tissue that the heart is made of
- 8. system responsible for blood circulation
- 9. blood picks up this from the lungs and takes to other parts of the body
Down
- 1. blood vessels that carry blood to the heart
- 3. two bottom chambers of the heart
- 5. the type of muscle the heart is made of
- 6. two top chambers of the heart
- 7. vessels that carry blood away from the heart