Across
- 3. The name for one of the two bottom chambers that pumps blood out to the lungs or body.
- 6. Along with oxygen, your blood carries these "food particles" to keep your cells healthy.
- 8. These blood vessels act like "exit ramps" because they carry blood away from the heart.
- 9. The largest artery in the body that carries oxygen-rich blood from the heart to the rest of the body.
- 10. The heart is a very special and strong type of ____ that never stops working.
- 12. Where the heart sends blood to get oxygen.
- 13. The approximate size of an individual's heart.
Down
- 1. The gas your body needs that is carried by your blood.
- 2. The tubes that carry blood back to the heart
- 3. Flaps that act like one-way doors to keep blood from flowing backward.
- 4. The four sections inside the heart.
- 5. Physical activity that keeps the heart muscle strong.
- 7. The name for one of the two top chambers of the heart that receives blood.
- 11. The heart's main job to keep blood moving.