__________ muscle lines the bronchi and bronchioles. This is improtant to control the ________ of the airway. When your exercising and gasping for air, the _________ nervous system stimulates the bronchi and bronchioles to ______, allowing the passage of more air to the lungs.
Smooth, diameter, sympathetic, dilate
after strenuous workout, the airway constricts under parasympathetic stimulaton
Inflammatory conditions such as asthma also cause constriciton of the airways, trapping air within the lungs.