Trachea The trachea, also called the windpipe, is part of the passageway that supplies air to the lungs. Any prolonged blockage, even for a few minutes, can cause death. The trachea is about 4.

The left lung has a superior and inferior lobe, while the right lung has superior, ... Each lobe receives air from its own branch of the bronchial tree, called lobar (or secondary) bronchi.