Across
- 2. cell pieces that form clots
- 5. the transport of blood back and forth between the heart and lungs
- 9. the flow of blood between the heart and everything but the lungs
- 10. study of the heart
- 11. upper chamber of the heart
- 12. lower chamber of the heart
- 13. blood vessels that carry blood away from the heart
Down
- 1. what arteries branch off into
- 2. slippery membrane that covers the heart
- 3. these transport oxygen to other cells of the body
- 4. these carry blood from capillary networks to veins
- 6. a straw colored liquid
- 7. what arterioles branch off into
- 8. blood vessels that carry blood back to the heart