bronchial submucosal gland ciliated duct

A bronchial submucosal gland ciliated duct is the terminal ciliated duct of a mucous gland in the bronchial submucosa that delivers secretions into the bronchial lumen.

Located in the submucosa of the primary, secondary, and tertiary bronchi, decreasing in number as the bronchi become smaller distally.

The duct conducts mucus from bronchial glands onto the bronchial surface where ciliated epithelium propels the mucus proximally in the mucociliary clearance cascade.

The ciliated duct connects the collecting ducts of bronchial submucosal glands to the ciliated bronchial epithelium.

Bronchial gland hypertrophy and increased mucus production in chronic obstructive pulmonary disease contributes to airway obstruction and exacerbations.