Brackenbury J
Respir Physiol. 1979 Feb;36(2):143-54. doi: 10.1016/0034-5687(79)90021-5.
The ventilatory activity of the anterior and posterior groups of air sacs was simulated in unidirectionally-ventilated geese and the resultant flow of air in the mediodorsal secondary bronchi was used as an indicator of the route which air followed through the lung. The results were used to isolate the roles of the respective groups of air sacs in the shaping of the unidirectional pattern of airflow known to exist during normal respiration. Findings indicated that, in contrast to Hazelhoff's model, the anterior and not the posterior sacs are responsible for producing the caudo-cranial flow of air through the parabronchi during inspiration. The posterior sacs, as predicted by Hazelhoffs model, and primarily responsible for driving the caudo-cranial current through the parabronchi during expiration.
在单向通气的鹅中模拟了前后气囊组的通气活动，并将由此产生的中背侧次级支气管中的气流用作空气通过肺部路径的指标。这些结果被用于确定各个气囊组在正常呼吸过程中已知存在的单向气流模式形成中的作用。研究结果表明，与黑泽霍夫模型相反，在吸气过程中，是前气囊而非后气囊负责产生通过副支气管的尾到头的气流。如黑泽霍夫模型所预测的，后气囊在呼气过程中主要负责推动通过副支气管的尾到头气流。
