The compliance of the canine trachea under positive and negative transmural pressures was measured in an in-vivo preparation. The average compliance values found in eight animals were 11.7×10−6 (dynes/cm2)−1 at zero transmural pressure and 4.9 and 6.9×10−6 (dynes/cm2)−1 at −20 and +20×103 dynes/cm2 transmural pressure, respectively. These compliances were significantly lower than those measured by others in excised preparations. Stress relaxation was noted at all pressure levels.
Issue Section:Research Papers
Topics:Elasticity, Trachea, Pressure, Relaxation (Physics), Stress
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