| A | B |
|---|
| emphysema | a serious lung disease that causes destruction of the air sacs (alveoli). |
| hemoglobin | substance in blood that carries oxygen and gives blood its red color. |
| tar | a carcinogen (cancer causing agent). |
| chronic bronchitis | lung infection caused by germs that irritate the walls of the bronchial tubes. |
| nicotine | the drug characteristic of tobacco that is physically and psychologically addictive. |
| lung cancer | an uncontrolled and irregular growth of abnormal cells in the lung (s). |
| heart rate | the rate at which the heart pumps blood through the arteries; generally this is based on the number of beats per minute. |
| blood pressure | the pressure of the blood against the walls of the arteries; blood pressure is increased due to smoking. |
| mainstream smoke | the smoke a smoker directly inhales from tobacco products. |
| carcinogen | a cancer causing agent (chemical); tar is a carcinogen. |
| carbon monoxide (CO) | a poisonous, odorless, colorless gas produced from burning tobacco products that poisons the red blood cells in the bloodstream. |
| sidestream smoke | the smoke from the burning end of tobacco products; non-smokers as well as smokers inhale this type of smoke. |
