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during _______, both sets of laryngeal muscles help to prevent particles from entering the glottis
right and left primary bronchi
the trachea branches within the mediastinum to form _________ and ________ ________ ________
secondary and tertiary
________ has less cartilage and more smooth muscle in comparison to the primary bronchi
the connective tissues of the root extend into the parenchyma of the lung as a series of _________
within the bronchopulmonary segments each teriary bronchus ultimately gives rise to 50-80 _____ ______ that supply individual lobules
Type II cells scattered in it produce an oily secretion (surfactant) that keeps the alveoli from collapsing.
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