Across
- 3. The organ that sends blood around the body and is one of the main parts of the cardiovascular system.
- 4. What each lower chamber of the heart is called.
- 8. Side of heart that recieves oxygen-poor blood.
- 9. Blood cells that carry oxygen to every cell in your body.
- 10. Number of chambers that a heart has.
- 13. Blood cells that fight pathogens such as bacteria and viruses.
- 14. Tiny blood vessel that allows exchange between body cells and blood.
Down
- 1. system An organ system that carries nutrients, gases, and hormones to body cells and waste products away from body cells.
- 2. Side of heart that recieves oxygen-rich blood.
- 4. A blood vessel that carries blood back to the heart.
- 5. Tiny pieces of larger cells that clump together when you bleed to prevent yourself from bleeding out.
- 6. hat each upper chamber of the heart is called.
- 7. Blood that travels through your body in tubes.
- 11. A blood vessel that carries blood away from the heart.
- 12. A fluid that transports supplies for cells, removes waste so cells can maintain homeostasis, and carries chemical messages.