Pulmonary Structure Review Flashcards
true/false: the respiratory region is made up of the alveoli and the bronchioles
false: only the alveoli
what happens in the conducting portion of the respiratory system?
air is transported, warmed, moistened, and filtered
do bronchioles have cartilage?
no
what are the most distal conducting airways?
respiratory bronchioles
what lines the conducting airways?
ciliated pseudostratified columnar epithelium
goblet cells
the trachea has c-shaped ___________________ with open ends posteriorly
hyaline cartilage rings
what lines lymphatics in the airways?
continuous squamous epithelium
what allows microtubules to bend relative to one another?
dynein arms (protrude from microtubules)
where are club cells or bronchiolar exocrine cells found?
distal airways
what do club cells do?
secrete surfactant and have P450 enzymes (detoxify multiple foreign compounds)
what is bronchus associated lymphoid tissue made up of?
lymphoid nodules associated with bronchi (especially bifurcations)
local aggregates of lymphoid cells
individual lymphocytes
what cells overly lymphoid cells?
M cells
when can BALT hyperplasia occur?
repeated respiratory infections
what are pores of kohn?
openings between alveoli
10-15 micrometer
what cells synthesize surfactant in the alveoli?
type II epithelial cells (no club cells in alveoli)
