| A | B |
|---|
| nicotine | an addictive chemical in tobacco that makes smoking pleasurable |
| carbon monoxide | a poisonous, colorless, odorless gas that pushes oxygen out of the RBCs |
| hemoglobin (Am) / haemoglobin (Br) | the protein in red blood cells that carries oxygen from the lungs to the cells |
| tar | a dark, sticky substance in cigarette smoke that can cause lung cancer |
| mucus | clear, sticky liquid that coats tissues and traps dirt; made by goblet cells |
| goblet cell | a specialized cell that makes mucus |
| ciliated cell | a specialized cell with tiny, waving hairs that push dirt and germs past it |
| blood pressure | a measure of how hard your blood presses on the inside of your arteries |
| diffusion* | moving from an area of high concentration to an area of low concentration |
| hypertension* | high blood pressure; the pressure in the arteries is too high |
| emphysema* | lung disease in which the alveoli become abnormally large as their walls are damaged |
