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June 1950


Arch Otolaryngol. 1950;51(6):936-945. doi:10.1001/archotol.1950.00700020962016

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Physical Laws of the Mechanism Involved in the Removal of Air From the Respiratory Tract Under Normal and Abnormal Conditions.Dr. A. C. Hilding (by invitation), Duluth, Minn.  The presenter gave a summary of the currently accepted theory on the mechanism of the production of postoperative atelectasis and pointed out and discussed certain discrepancies in the accepted theory. He described his experiments bearing on the efficiency of ciliary action in handling mucus and on the determination of the cross sectional area of the bronchial tree at different levels. The laws of physics governing the absorption of air from various body spaces were reviewed and illustrated by accounts of the steps involved in the absorption of an air bubble injected into the anterior chamber of the eye at cataract surgery; the absorption of air from a completely blocked sinus; from the middle ear after closure of the eustachian tube by mechanical means,

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