\Bron"chi*al\, a. [Cf. F. bronchial. See {Bronchia}.]
(Anat.)
Belonging to the bronchi and their ramifications in the
lungs.
{Bronchial arteries}, branches of the descending aorta,
   accompanying the bronchia in all their ramifications.
{Bronchial cells}, the air cells terminating the bronchia.
{Bronchial glands}, glands whose functions are unknown,
   seated along the bronchia.
{Bronchial membrane}, the mucous membrane lining the
   bronchia.
{Bronchial tube}, the bronchi, or the bronchia.