Across
- 2. carries blood back to the heart
- 3. carries blood from the heart to the rest of the body
- 7. helps the body fight infections
- 8. The phase of the heartbeat that allows the chambers to fill with blood
- 10. Two chambers at the bottom of the heart
Down
- 1. tiny blood vessels that connect the arteries to veins
- 4. carry oxygen from the lungs to the rest of the body
- 5. pumps blood through the circulatory system
- 6. separates the chambers of the heart
- 9. two chambers at the top of the heart