| A | B |
|---|
| nose | only externally visable part of respiratory system |
| pharynx | "throat"- serves as common passageway for food and air |
| larynx | also known as the "voice box" |
| vocal cords | found inside the larynx (air rushing past vibrates and produces sound) |
| epiglottis | protects top opening of larynx. "guardian of the airway" |
| trachea | "windpipe" |
| bronchi | where trachea divides into two branches. Each lead to lung |
| alveoli | tiny clusters of hollow sacs where gas exchange takes place |
| diaphragm | muscle that contracts and moves down causing volume of chest cavity to increase |
| tidal volume | sum of air in conducting airways and "useful" air participating in gas exchange |
| hemoglobin | special oxygen-carrying molecule |
| emphysema | disease in which alveoli lose ability to expand and contract |
| chronic bronchitis | when too much mucus is produced in bronchial tubes |
| asthma | often allergic reaction in which bronchial tubes contrict causing shortness of breath |
| lung cancer | leading cause of death from cancer |
| cystic fibrosis | most common lethal genetic disorder |
| intercostal muscles | muscles of ribcage that aid in inhalation and exhalation |
| lungs | organ consisting of the bronchioles and alveoli |
| heimlich maneuver | technique used to "pop out" obstruction from airway |
| ciliated cells | cells that move contaminated mucus (dust, bacteria, etc.) to back of throat to be swallowed |
