| A | B |
|---|
| trachea | windpipe |
| pharynx | throat |
| vocal cords | two folds of connective tissue that stretch across the opening of the larnx |
| larynx | voice box |
| alveoli | tiny sacs of lung tissue specialized for the movement of gases between air and blood |
| lungs | main organs of the respiratory system |
| bronchi | passages that direct air into the lungs |
| diaphragm | muscle located below the lungs |
| epiglottis | prevents food from entering the trachea |
| nose | warms and moistens air entering the respiratory system |
| sinuses | cavities within bones surrounding the nasal cavity |
| pleura | produce fluid that allows the lungs to glide |
| surfactant | fatty molecule that prevents the alveoli from collapsing between each breath |
| atelectasis | lung collapse |
| hyperventilation | breathing in excess of what the body needs |
| emphysema | the walls between the alveoli within the lungs lose their ability to stretch and recoil |
| cystic fibrosis | the most common lethal genetic disease |
| asthma | caused by chronically inflamed, hypersensitive bronchial passages that respond to many irritants |
| pneumonia | an inflammation of the lungs that is usually caused by infection with bacteria, viruses, fungi or other organisms |
| lung cancer | resistant to chemotherapy and radiation therapy |
| COPD | chronic bronchitis and emphysema are examples of this |
