Tutorial: Static Elastic Properties of the Lung and Chest Wall.


This tutorial explains the relationship between the static pressure-volume curves of the lung and relaxed chest wall, and their recoil pressures.

During breathing, the inspiratory muscles must create enough pressure to overcome two forces: the friction associated with air flow and also the increase in elastic recoil of the lung as it inflates to a larger volume. Before we consider air flow, we must understand the elastic properties of the lung and chest wall.

These are best studied in static situations; that is, while one holds one's breath (either by tensing one's respiratory muscles or by closing one's glottis).

Please click the "next" button to continue.


Last modified, October 23, 1995
Johns Hopkins School of Medicine, 1994
oac@jhmi.edu
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