The bronchioles connect to one or the other of the bronchi, the two main branches of the trachea, which lead directly to the lungs.
Singular of "bronchi" is "bronchus".
it is bronchioles
No, bronchioles are part of the respiratory system. They are small airways found in the lungs.
Bronchioles means little bronchi and arterioles means, literally, little arteries. Since the bronchioles are in the respiratory system and the arterioles are in the cardiovascular system, this would be a fair comparison.
the bronchioles
THE BRONCHIOLES
It dilates the bronchioles.
Bronchioles
In the lining of the trachea, bronchi, and bronchioles.
Bronchioles are part of the respiratory system and branch from the bronchus. Air from the bronchus enters the terminal bronchioles that terminate in air sacs known as alveoli.
The respiratory looks like an upside down tree, from the trunk to the branches and to fruit (such as an apple). From largest to smallest, the respiratory system consists of the throat to main bronchi, to bronchioles, to terminal bronchioles, to alveolar ducts, to alveolar sacs (aveoli look like tiny grapes).
it is bronchioles
the Bronchioles, Air sacs and the Diaphragm