Across
- 2. Organs where blood picks up oxygen and gets rid of carbon dioxide
- 3. A “door” in the heart that keeps blood moving in one direction
- 6. Upper chamber of the heart that receives blood
- 9. The strong muscle that pumps blood all around your body
- 10. The gas in the air that your blood carries to your cells
Down
- 1. The beat you can feel in your wrist or neck as your heart pumps
- 4. A blood vessel that carries blood away from the heart
- 5. A blood vessel that carries blood back to the heart
- 7. The type of body tissue the heart is made of
- 8. Lower chamber of the heart that pumps blood out