Diameters of bronchi at asymmetrical divisions.
The weight, and hence volume, of a cast of the bronchial tree of a sheep distal to any point was found to be a function of the diameter of the bronchus at that point. This result has been used to derive a relationship between the diameter of a bronchus and the diameters of its branches which is applicable to different types of branching and is consistent with principles of minimum energy loss within the bronchial tree.
D000818:Animals; D001699:Biometry; D001980:Bronchi / Q000033:anatomy & histology*; D008433:Mathematics; D012756:Sheep