Bronchoconstriction doesn't occur in the larger bronchi because it has cartilages which help in the mediation of the process.
This is referred to as the process in which the airways of an organism are tightened as a result of different factors such as allergic reactions etc.
It doesn't occur in the larger bronchi because it has cartilages present in its structure which help in the mediation of the given process. The bronchioles have smooth surfaces which can become narrow or contract thereby leading to the individual having difficulties in breathing and a common example is those who have asthma.
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