The reading and the lecture next discuss asthma cause. The reading says that bronchioles become narrow big muscle wrapped around them, blocked by mucus that produced by bronchial tubes, and swelling inside the tubes themselves. This is blocking airway, so the air can’t get in or out of the lung easily and consequent asthmatic symptoms. The lecture, on the other hand, claims that young children research found that asthmatic children already have remodeled airways. So the remodeling is consequential of important asthma cause. Moreover, genetic and environment affect remodeling that is vulnerable airways before birth.