| A | B |
|---|
| Pneumonia | an inflammation and infection of the lungs where too much moisture builds up and impairs breathin |
| Respiration | occurs when oxygen and carbon dioxide gases are exchanged |
| Asthma | occurs when the bronchial tubes are inflamed and, as a result, obstructed |
| lung cancer | leading cause of cancer death in both males and females |
| Lungs | the key organs of the respiratory system |
| larynx | vocal cords |
| Epiglottis | flap of tissue that prevents food and liquid from entering the air passages during swallowing |
| 4-6 minutes | supply of oxygen exists in the body at any one time |
| Asthma | conditions may be treated with an inhaled bronchodilator |
| Alveoli | exchange of oxygen and carbon dioxide takes place in the walls |
| Pleura | slippery membrane that helps to prevent damage to the lungs from friction |
| external stage of respiration | exchange of gases between the lungs and the blood |
| Cilia | tiny hairs that filter dust and germs out of the air entering the respiratory system |
| Inspiration | the process of breathing in air |
| Trachea | windpipe |
| Atelectasis | collapse of part or all of a lung |
| • Chronic Obstructive Pulmonary Disease | a group of diseases that cause recurring blockage of the air passages |
| Diaphragm | the large flat muscle that separates the thoracic cavity from the abdominal cavity |
