bronchial venule

The bronchial venule is a small venous vessel that drains blood from the bronchi and bronchioles of the lungs and serves as a tributary of the bronchial veins.

Bronchial venules are located within the walls of the bronchi and bronchioles throughout the lung, collecting venous drainage from the bronchial epithelium and surrounding connective tissue.

The bronchial venule is involved in returning deoxygenated blood from the airway walls of the bronchi and bronchioles to the bronchial venous system, which ultimately drains into the pulmonary or systemic circulation.

Bronchitis, bronchiectasis, pulmonary hypertension, or bronchial vascular anomalies may be associated with changes in the bronchial venules and bronchial venous drainage.

Bronchial venules may be assessed through CT pulmonary angiography, bronchoscopy with vascular imaging, or histological examination of lung tissue obtained by biopsy or surgical resection.