(2022/2023) Rated A+
Alveolar air volume ✔✔Amount of air that reaches alveoli for gas exchange (approx. 350 ml.
For adult male) Tidal volume minus dead space
Dead air space ✔✔Anatomically: structures that hold air, but can't participate in gas exchange.
Physiologically: alveoli or capillaries destroyed by disease
Expiratory reserve volume ✔✔Amount of gas that can be forcefully expired at the end of a
normal expiration
Inspiratory reserve volume ✔✔Amount of gas that can be forcefully inspired in addition to a
normal breaths tidal volume
Internal respiration ✔✔Exchange of gases between blood cells and tissues
Peak expiratory flow ✔✔The greatest rate of airflow during forced expiration when lungs are
fully inflated
, Residual volume ✔✔After maximal forced exhalation, amount of air remaining not able to be
expelled
Tidal volume ✔✔Amount of air in a respiratory cycle (500 ml, 5-7ml/kg)
Minute volume ✔✔Amount of gas moved in and out of respiratory tract per minute
Air trapping ✔✔A respiratory pattern associated with an obstruction in the pulmonary tree. Rate
increases to overcome resistance
Angle of Louis ✔✔Angulation of the sternum that indicates the point where the second rib joins
the sternum. (manubriosternal junction)
Anoxia ✔✔total lack of oxygen available to the tissues
Apnea ✔✔Respiratory arrest