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17 terms

pt202 quiz #2 am class Vocab

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Pulmonary ventilation
The exchange of air between the atmosphere and the air sacs of the lungs.
Nostrils
Air enters the body through these.
Dyspnea
Is a subjective feeling of difficult or labored breathing.
Diffusion
The movement of molecules from an area in which they are in higher concentration to an area in which they are in lower concentration.
Vital capacity
The volume of air that remains in the lungs after maximum exhalation.
Nasal Septum
This seperates the nose into two portions.
Nasopharynx
The superior portion of the nose, located behind the nasal cavity.
Larynx
Commonly called the voice box.
Vocal cords
These vibrate as air flows over them from the lungs.
Epiglottis
A leaf-shaped cartilage that covers the larynx during swallowing.
Trachea
commonly called the windpipe
Mediastinum
The space between the lungs, including the esophagus, trachea, and lymph nodes.
Diaphragm
A muscular partition in the abdominal cavity.
Inhalation
Inspiration, the drawing of air into the lungs.
Exhalation
Expiration, the expulsion of air from the lungs.
Compliance
The ease with which one can expand the lungs and thorax.
Apnea
A temporary cessation of breathing.