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respiratory
| Term | Definition |
|---|---|
| asthma | airways become inflamed and narrow making it hard to breathe |
| punctured lung | air leaks into the space around the lung causing lung to collapse |
| pulmonary fibrosis | lung tissue becomes scarred and stiff making it difficult to breathe |
| pulmonary edema | fluid builds up in the lungs making it hard to breathe |
| hyperventilate | breathing fast causing too much carbon dioxide to leave the body |
| diffusion | movement of gases from an area of high concentration to low concentration |
| inspiration | breathing air into the lungs |
| expiration | breathing air out of the lungs |
| respiratory rate | the number of breaths a person takes per minute |
| pule oximetry | test that measures the amount of oxygen in the blood using small device on finger |
| peak expiratory flow | fastest speed which a person can blow air out of their lungs |
| peak expiratory flow rate | maximum speed of air leaving the lungs during forceful exhale |
| forced expiratory volume | air a person can forcefully exhale in one second |
| bronchodilator | medication that relaxes and opens the air ways to make breathing easier |
| upper respiratory tract | part of respiratory system that includes the nose, nasel cavity, pharynx and larynx |
| lower respiratory tract | trachea, bronchi, bronchioles, and lungs |
| larynx | voice box helping produce sound keeping airways open |
| pharnyx | the throat passageway for air and food |
| nasal cavity | hollow space inside nose that filters, warms, and moistens air |
| bronchi | two large tubes that carry air from the trachea into each lung |
| bronchioles | smaller branches of bronchi that lead to alveoli |
| alveoli | tiny air sacs in the lungs where oxygen and carbon dioxide are exchanged |
| trachea | the windpipe that carries air from larynx to the bronchi |
| lungs | main organ of breathing where gas exchange happens |
| right superior lobe | the top section of the right lung |
| right medial lobe | the middle section of the right lung |
| right inferior lobe | the bottom section of the right lung |
| left superior lobe | the upper section of the left lung |
| left inferior lobe | the lower section of the left lung |
| horizontal fissure | a line that separates the right upper lobe from the right middle lobe |
| oblique fissure | a diagonal line that separates lung lobes |
| diaphragm | large muscle under the lungs that help control breathing |
| cartilaginous rings | rings of cartilage around the trachea that keep airways open |
| epiglottis | flap of tissue that closes over the trachea when swallowing to keep food out of the lungs |
| respiratory zone | part of the lung where gas exchange occurs |
| conducting zone | the airways that move air in and out of the lungs but do not exchange gases |