Bronchi are the major air passages that branch off from the trachea and lead into the lungs, playing a crucial role in the respiratory system. They are responsible for directing air to each lung, further branching into smaller bronchioles, which ultimately facilitate gas exchange in the alveoli. The structure of the bronchi includes cartilage and smooth muscle, allowing them to remain open while also regulating airflow during breathing.
congrats on reading the definition of Bronchi. now let's actually learn it.