Bronchial Tree 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.

Image of a lung lobe from a carcinogen-exposed mouse. Cells expressing the basal cell marker KRT5 have been fluorescently labelled and can be seen spreading throughout the bronchial tree ...