Bronchus principalis=>bronchi lobares=>bronchus segmentalis=>bronchiolus terminalis=> bronchiolus respiratorius=>ductulus alveolaris=>sacculus alveolaris=> alveolus
i hope that you don't mind latina terminology.
The Epiglottis
It serves as a passage of air to the lungs
The passage between the nose that i fink u r looking the answer is the trachea which leads the air to the lungs
the big pear part in ur chest
Trachea
Your Trachea
It tends to act as a passage for air to go to the lungs when we breathe.
The anagram is "epiglottis" - a flap in the throat that directs air to the trachea (to lungs), and food to the esophagus (to stomach).
bronchi is a passage of airway in the respiratory tract that conducts air into the lungs.
The air passage
They just function as air passage and carry the air in and out of the lungs during respiration
trachea