1 Explain how the structure of different segments of the respiratory airways reflect the functional roles that these airways play in air movement and gas exchange. 2  Distinguish the trachea, bronchi, terminal bronchioles, bronchioles, alveolar ducts, alveolar sacs, and alveoli based on key structural features.he respiratory airways extend from the respiratory bronchioles to the alveoli. 1  The respiratory bronchioles have a diameter of 0.5 millimeters and feature a few alveoli scattered along their walls. 2  The epithelium here remains low cuboidal.
Lily Collins and Chris Evans 'dating and having a lot of fun together since meeting at Oscars after-party'. Lily Collins has been swept off her feet by Captain America. The 25-year-old British beauty is reportedly 'dating' Chris Evans ,33, according to a new report from Us Weekly on Saturday. The new couple first met at the Vanity Fair Oscars party on February 22 and been 'having a lot of fun' together. Scroll down for video.
Chris Evans Bi-Coastal Living Chris Evans experiences the best of both worlds. Owning homes on two coasts offers Evans a fair amount of variety in regards to environment and city life; despite the obvious differences, both homes share the same attribute â privacy!