COLLATERAL RESPIRATION

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Abstract
Collateral respiration is denned and its various, previously described roles are briefly reviewed. Experimental evidence [exps. on dogs] is presented to show another function of this property of the lungs: the reinflation of an atelectatic pulmonary lobule when its bronchus is permanently blocked. The evidence indicates, too, that such rein-flation may be greatly interfered with when the rest of the same lobe is inflamed. These findings may explain certain clinical phenomena associated with the re-expansion of atelectatic foci in postoperative atelectasis and in pulmonary tuberculosis.

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