Across
- 3. The top chambers of your heart.
- 5. Blood vessel that carries blood away from the heart.
- 8. blood that has little or no oxygen left in it.
- 10. The bottom chambers of your heart.
- 11. Tiny blood vessels that exchange oxygen into the blood.
Down
- 1. Large artery that carries oxygen rich blood out of the heart.
- 2. Tiny flaps that keep blood flowing in the correct direction.
- 4. This muscle pumps blood to all parts of your body.
- 6. This artery carries blood from the heart to the lungs.
- 7. Blood vessel that carries blood back to the heart.
- 9. Your heart pumps blood to the lungs to fill up with ________.