Across
- 6. lower chamber of the heart
- 7. organ that pumps blood throughout the body
- 8. from arteries blood flows back to the heart
- 9. separates left and right sides of the heart
- 10. alternating expansion & relaxation of artery wall
- 11. upper chamber of the heart
Down
- 1. blood vessels carries blood away from the heart
- 2. sends out signals making heart contract
- 3. move from area of higher concentration to lower
- 4. blood vessels that carry blood back to the heart
- 5. system also called circulatory system