Across
- 4. Type of air that your lungs remove from your blood cells?
- 6. What are the blood vessels that carry blood away from your heart?
- 7. Type of air your lungs put into your blood cells?
Down
- 1. The heart, blood vessels, and blood are all part of what body transport system?
- 2. How many chambers does your heart have?
- 3. What are the blood vessesl that cary blood back to your heart?
- 5. What is the pump that makes your circulatory system work?