뒤로Respiratory System Key Terms 6
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Ciliated lining of much of the conducting zone specialized to remove debris and pathogens, and produce mucus.
The alveolar and capillary walls together form an air-blood barrier that facilitates simple diffusion of gases.
Total number of breaths taken each minute.
Varying amounts of air within the lung at a given time.
Structures of the respiratory system directly involved in gas exchange.
Region of the external nose located between the eyebrows.
The ability of the thoracic wall to stretch while under pressure.
Largest cartilage of the larynx, consisting of two laminae.
Amount of air that normally enters the lungs during quiet breathing.
Sum of the anatomical dead space and alveolar dead space.
Total amount of air the lungs can hold; sum of TV, ERV, IRV, and RV.
Sum of all the partial pressures of a gaseous mixture.
Tube with cartilaginous rings connecting the lung bronchi and larynx; provides a route for air to enter and exit the lungs.
Smooth muscle located in the fibroelastic membrane of the trachea.
Pressure difference between the intrapleural and intra-alveolar pressures.
One of the pair of folded, white membranes with a free inner edge that oscillates as air passes to produce sound.
Squamous epithelial cells that are the major cell type in the alveolar wall; highly permeable to gases.
Cuboidal epithelial cells that are the minor cell type in the alveolar wall; secrete pulmonary surfactant.
Movement of air into and out of the lungs; consists of inspiration and expiration.
Region of the medulla oblongata that stimulates contraction of accessory muscles for forced inspiration and expiration.
Part of the folded glottis composed of mucous membrane; supports the epiglottis during swallowing.
Innermost layer of the pleura that is superficial to the lungs and extends into lung fissures.
Sum of TV, ERV, and IRV, representing all volumes that participate in gas exchange.