| A | B |
|---|
| External nares | nostrils, air enters here |
| Nasal septum | divides nostrils |
| Conchae | folds in nasal cavity |
| Paranasal sinuses | lighten skull, resonate sound, produce mucus |
| Pharynx | three parts, used in respiratory and digestive systems |
| Tonsils | lymph tissue around mouth and nose to trap pathogens |
| Larynx | voice box |
| Trachea | windpipe |
| Bronchi | branches leading from the trachea to lungs |
| Pulmonary pleura | adheres lungs to ribs, lubricates lungs |
| Bronchioles | passageways in lungs |
| Alveoli | sacs in lungs used for gas exchange |
| Inspiration | inhalation |
| Expiration | exhalation |
| Pulmonary ventilation | breathing in and out |
| External respiration | exchange of gas between alveoli and blood |
| Respiratory gas transport | movement of gas in blood |
| Internal respiration | exchange of gas between blood and tissues |
| Tidal volume | amount of volume in lungs during normal breathing |
| Inspiratory reserve volume | amount of air taken in over tidal volume |
| Expiratory reserve volume | amount of air exhaled below tidal volume |
| Residual volume | minimum amount of air in lungs |
| Rales | rasping sounds |
| Wheezing | whistling sounds |
| Pneumothorax | collapsed lung |
| Hypoxia | poor oxygen circulation |
