Cardiovascular System

5. What each lower chamber of the heart is called.
6. A fluid that transports supplies for cells, removes waste so cells can maintain homeostasis, and carries chemical messages.
9. system An organ system that carries nutrients, gases, and hormones to body cells and waste products away from body cells.
12. A blood vessel that carries blood away from the heart.
13. Tiny blood vessel that allows exchange between body cells and blood.
14. Number of chambers that a heart has.
15. Blood that travels through your body in tubes.

1. Blood cells that fight pathogens such as bacteria and viruses.
2. hat each upper chamber of the heart is called.
3. Side of heart that recieves oxygen-rich blood.
4. A blood vessel that carries blood back to the heart.
7. The organ that sends blood around the body and is one of the main parts of the cardiovascular system.
8. Tiny pieces of larger cells that clump together when you bleed to prevent yourself from bleeding out.
10. Side of heart that recieves oxygen-poor blood.
11. Blood cells that carry oxygen to every cell in your body.