11. Also, unlike asthma, hypersensitivity pneumonitis targets lung alveoli rather than bronchi . 12. An endotracheal tube can puncture the trachea or bronchi and cause subcutaneous emphysema. 13. This blood supplies the bronchi and the pleura to meet their nutritional requirements. 14. A 2004 study published by Imperial College London concluded that theobromine has an bronchi . 15. There are usually three arteries, and they branch alongside the bronchi and bronchioles. 16. In the case of a sequential transplant the recipients lung with the poorest bronchi . 17. The trachea and bronchi form the tracheobronchial tree. 18. It is used as a sinuses and bronchi . 19. At night, the bronchi naturally narrow in everyone, increasing resistance to air flow. 20. Cartilage is present until the small bronchi .