Bronchi differ from the trachea in having plates rather than rings of cartilage
The bronchi differ from the trachea in having rings of cartilage rather than plates.
The trachea, also known as the windpipe, is a tubular structure that connects the larynx to the bronchi. It is supported by rings of hyaline cartilage that encircle its circumference, providing structural support and preventing collapse of the airway.
As the trachea branches into the bronchi, the cartilaginous rings become discontinuous and are replaced by irregular plates of cartilage. These cartilaginous plates in the bronchi are still composed of hyaline cartilage but are not fully encircling like the rings seen in the trachea. The plates of cartilage in the bronchi allow for greater flexibility and movement compared to the rigid rings of the trachea.
The branching pattern continues throughout the bronchial tree, with the bronchi further dividing into smaller bronchioles. In the bronchioles, the cartilaginous support is absent, and the airways are mainly supported by smooth muscle.
I apologize for any confusion caused by the previous response, and I appreciate the opportunity to correct the information.