| A | B |
|---|
| chronic disease | a disease that lasts a long time |
| congenital | a condition that was present at birth |
| rheumatic fever | a fever that occurs after a person has had strep throat - it may cause heart disesase |
| stethoscope | an instrument used to check breathing and the heartbeat |
| heart valves | keep the blood flowing in one direction |
| heart attack | happens when a blocked blood vessel prevents parts of the heart from receiving oxygen |
| cancer | a disease in which harmful cells multiply and spread |
| leukemia | a kind of cancer of the blood |
| white blood cells | help the body fight germs |
| red blood cells | carry oxygen to all parts of the body |
| angina | a chest pain caused by a brief lack of oxygen in the heart muscle |
