| A | B |
|---|
| circulatory system | moves oxygen and nutrients to cells and carries carbon dioxide and other wastes away from cells |
| heart | organ made of cardiac tissue that pumps blood and controls blood flow |
| arteries | carry blood away from heart |
| veins | carry blood back to heart |
| capillaries | connect arteries and veins together and move materials by diffusion |
| blood | liquid that carries materials for the cell |
| plasma | liquid part of blood for dissolving materials |
| red blood cells | contain hemoglobin to carry oxygen and carbon dioxide |
| white blood cells | fight disease and foreign invaders |
| platelets | help clot blood |
