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Figure 3 | BioMedical Engineering OnLine

Figure 3

From: Bench and mathematical modeling of the effects of breathing a helium/oxygen mixture on expiratory time constants in the presence of heterogeneous airway obstructions

Figure 3

Experimentally determined expiratory time constants for the right, left, and whole lung plotted against the log of the loss coefficient of the right lung obstruction. The left lung obstruction was held constant at kL = 3.3. The compliances of the left and right chambers were both equal to 0.05 l/cm H2O. The test lung was ventilated with a tidal volume of 1000 ml at 20 breaths/min with (a) air or (b) He/O2 to produce a minute ventilation of 20 l/min.

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