When Abby Ellstrom and her friends at East High School in Denver crave classic chicken nuggets for lunch, the sophomores swipe the Uber icon on one of their smartphones and ride the nine blocks to Chick-fil-A.When they are done, they click Uber again for pickupâand make it back in time for their next class.y. When Abby Ellstrom and her friends at East High School in Denver crave classic chicken nuggets for lunch, the sophomores swipe the Uber icon on one of their smartphones and ride the nine blocks to Chick-fil-A. When they are done, they click Uber again for pickupâand make it back in time for their next class.
Trachea and Bronchi. The respiratory tree (figure 7-4) is the set of tubular structures which carry the air from the larynx to the alveoli of the lungs. Looking at a person UPSIDE DOWN, the trachea is the trunk of the tree and the bronchi are the branches. These tubular parts are held open (made patent) by rings of cartilage. Their lining is ciliated to remove mucus and other materials that get into the passageway.
A: Hyaline Cartilage on the periphery is part of the cartilagenous plates that do not enter into the lung. B: Bronchioles carry air from the bronchi to the terminal bronchioles and are line by ciliated pseudostratified columnar epithelium C: Terminal bronchioles are lined by ciliated simple columnar epithelium.: Terminal Bronchioles open up into alveoli allowing the air to pass directly into the alveolar spaces and diffuse across the simple squamous epitheliums of the alveoli and capillaries C: Alveolus is lined by a thin layer of simple squamous to facilitate diffusion of O2 and CO2. A: Ciliated somple columnar epithelium.