The widening of the airways occurs when the smooth muscle surrounding the small air passages within the lungs relaxes. This allows for increased airflow into and out of the lungs. This process is essential for efficient respiration.
Improved airflow facilitates greater oxygen intake and carbon dioxide removal, enhancing overall respiratory function. This is particularly important during physical exertion or when respiratory function is compromised, such as in asthma or chronic obstructive pulmonary disease (COPD). Understanding the mechanisms that control airway diameter has been crucial to developing effective treatments for these conditions.
