For information regarding other County jobs, call (209) 385-7516. You will be provided with a recorded message, accessible 24 hours a day. For information regarding other County jobs, call (209) 385-7516. You will be provided with a recorded message, accessible 24 hours a day.
That root extends down some distance and branches off into two large roots, which are the bronchial tubes. These two large roots veer off in different directions and become a network of small roots, or bronchioles, that cover a large area. The bronchial tubes are located at about the center of a personâs chest. They connect to an upper portion of the lungs, known as the hilum. The bronchial tube that branches to the right is shorter than the one that goes to the left. This is due to the positioning of the heart, which is on the left side of the chest.
1 Irregular rings of cartilage surround the bronchi, whose walls also consist of smooth muscle. 2  Once inside the lung the bronchi split several ways, forming tertiary bronchi. 3  Bronchioles: Tertiary bronchi continue to divide and become bronchioles, very narrow tubes, less than 1 millimeter in diameter.