ANFS140 Lecture Notes - Lecture 3: Phospholipid, Surface Tension, Bird Anatomy
23 May 2016
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Anfs140 comparative anatomy and histology of respiratory tissues. Moisturization/warming of air and removal of particulate matter. Removal of carbon dioxide from blood and exhalation. Ability to make sound in upper resp tract and sense smells: two basic parts: Goal is to get air to the end point. Larynx/trachea: divides to go to lung tissue. Secondary bronchi ( lobar : tertiary bronchi ( segmental ) Alveoli: they cluster together and have associated vessels around them. Related capillaries: covers all over alveoli, allows for gas exchange between tissue and blood. Bronchiole: no cartilage, rely on smooth muscle. This is what has problem with asthma: no submucosal glands, ciliated columnar, few goblet cells. Goes to simple cuboidal eventually: clara cells- columnar cells with apical secretory granules (in cytoplasm) or vacuoles. Alveoli allow for gas exchange while terminal bronchioles don"t. Type ii: plump, produce surfactant to reduce surface tension and keep alveolus open (p2)
