| A | B |
|---|
| plasma | the liquid part in the blood |
| red blood cells | a disk shaped blood cell |
| white blood cells | a cell that helps the body fight diseaes |
| hemoglobin | it carries oxygen to body cells |
| blood vessel | a hollow tube that carries blood |
| bone marrow | soft tissue located within bones |
| heart | an organ located in the chest |
| platelets | helps control and stop bleeding |
| immune system | cells that destroy invading bacteria |
| antibiotic | a drug that kills diseaes |
