| A | B |
|---|
| alveoli | Structures in the lung where gas exchange takes place. |
| asthma | Bronchial tubes narrow preventing oxgen from entering the lungs. |
| breathing | The exchange of gases between the atmosphere and the lungs. |
| bronchi | Tubes lined with cilla that connect the trachea and the lungs. |
| bronchioles | Small bronchi that end in the alveoli. |
| bronchitis | Inflammation of the lining of the bronchial tubes. |
| cellular respiration | Energy-releasing process that takes place inside the cell. |
| diaphragm | A dome-shaped muscle located at the bottom of the chest cavity. |
| emphysema | A lung disease in which the alveoli become large and break down. |
| epiglosttis | A flap of tissue that covers the glottis during swallowing. |
| exhalation | Air moving out of the lungs. |
| external respiration | Respiration that occurs outside the cells. |
| glottis | The opening to the windpipe (trachea). |
| inhalation | Taking air into the lungs. |
| internal respiration | Respiration that takes place inside the cells. |
| larynx | The voice box located at the upper end of the trachea. |
| lung cancer | An uncontrollable growth of tumor cells in the lungs. |
| lungs | Large spongy organs located in the chest cavity. |
| nostrils | Place where air enters the respiratory system. |
| pharynx | The back of the throat. |
| pleural membrane | The membrane that covers the lungs. |
| pneumonia | Infection of the lungs that is caused by a bacteria or virus. |
| respiration | The life responsible for releasing energy from nutrients. |
| respiratory system | Transport gases between the external environment and the internal surfaces. |
| trachea | Also called the windpipe. |
