Across
- 3. There are 60,000_____ of blood vessels in your body
- 5. Carry oxygenized blood from the heart to different parts of the body
- 7. _______ circulation helps deliver blood and nutrients to other parts of the body
Down
- 1. One part of the system that works with the lungs
- 2. The circulatory system works closely with the ________ system
- 4. This organ helps pump out waste
- 6. The ____ return blood to the hearts from the organs.