| A | B |
|---|
| AIDS | Viral disease that affects the imune system. |
| Anemia | A condition in which there are too few red blood cells and hemoglobin in the blood. |
| Antibody | Chemicals that help destroy bacteria & viruses. |
| Antigens | Foreign substances, usually proteins, that invade the body and cause disease. |
| Bone marrow | Soft center part of a bone, where red & white blood cells are produced. |
| Hemoglobin | A protein in red blood cells that joins with oxygen and gives the red blood cells their color. |
| Hemophilia | A disease in which a person's blood will not clot. |
| Immune System | The body system made up of proteins, cells, and tissues that identify and defend the body against foreign chemicals and organisms. |
| Immunity | The ability of a person who once had a disease to be protected from getting the same disease again. |
| Leukemia | A blood cancer in which the number of whilte blood cells increase at an abnormally fast rate. |
| Plasma | The nonliving, yellow liquid part of blood. |
| Platelets | Are cell parts that aid in forming blood clots |
| Red Blood Cells | Cells in the blood that carry oxygen and nutrients to body cells. |
| White Blood Cells | Cells in the blood that destroy envaders of the body, remove dead cells, and make proteins that prevent disease. |
