BIOM 2000 Lecture Notes - Lecture 6: Aortic Body, Hemoglobin, Aorta
20 Mar 2017
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Document Summary
Passageway to the lungs that puri es, humidi es and warms the incoming air and gas exchange between the blood and the external environment. Oral cavity = route for transfer of air and food. Nasal cavity moistens air and traps incoming foreign particles. Acts as a passage from the nasal cavity to the larynx. Responsible for routing air and food into the proper channels. Also plays a role in speech and is. Is the last of the single tube structures before branching takes place to the left and right sides of the lung. Divides further into smaller branches called bronchioles primary bronchi > secondary bronchi > tertiary bronchi > bronchioles > terminal bronchioles. Trachea, bronchi, and bronchioles are all lines with ciliated mucosa which plays an important role to keep the respiratory tract moist and to trap potential pathogens. Cilia beat continuously in the opposite direction of incoming air > moves mucous containing dust particles away from he lungs.
