The bronchi branch, branch, branch and they stop branching, not because of any matter of principle, but because of physical considerations: the mucus, which is in the lung.
Bronhi sazarojas, sazarojas, sazarojas, un tie pārstāj sazarošanos ne kāda īpaša principa dēļ, bet fizikālu apsvērumu, plaušu gļotu dēļ.