| A | B |
|---|
| fibrillation | life-threatening heart twitching |
| Atherosclerosis | disease that cholesterol deposits in artery walls |
| Aneurysm | ballooning of weak spot on vessel wall |
| EKG | recording heart's electrical activity |
| metastasis | spread of cancer from origin |
| biopsy | examine small peice of tissue for cancer |
| disability | impairment that limits normal activity |
| diabetes | body not able to use blood sugar |
| hypertension | high blood pressure |
| coronary heart disease | blockage of blood to heart muscle |
| platelets | part of blood starts clotting |
| atria | upper chambers of heart, receiving blood |
| ventricle | lower chamber of heart, pumps blood to lungs or rest of body |
| aorta | largest artery in body |
| heart valve | makes heart beat sound |
| pneumonia | fluid collects in alveoli |
| alveoli | air sacs in lungs |
| cilia | hair like structures line air passages |
| anemia | too little hemoglobin in blood; low iron |
| asthma | disorder that air passages become narrower than normal |
| influenza | infection with symptoms like fever, headache, sore throat, and cough |
| capillaries | smallest blood vessels |
| veins | feed blood back into heart |
| tuberculosis | bacterial disease affecting lungs |
| coronary bypass | surgery to treat blocked arteries |
