Respiratory System Pt. 2
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Trachea/Bronchial Tree and Lungs
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47 Terms
Trachea (windpipe) - tube that conducts air from larynx to the bronchi.
right main (primary) bronchus - branch off of trachea at the carina
Carina
right lobar (secondary) bronchus - enter each lobe of lungs
Diaphragm
Larynx
Tracheal cartilage
Left main (primary) bronchus - branch off of trachea at the carina
Left segmental (tertiary) bronchus - enter each lobe of lungs
Bronchiole - lead to terminal bronchioles
Main (primary) bronchus
Lobar (secondary) bronchus
Segmental (tertiary) bronchus
Terminal bronchiole - last part of conducting zone
Respiratory bronchiole - contain few alveoli
Alveolar saccule (sacs) - clusters of alveoli
Respiratory bronchiole - contain few alveoli
Alveolar ducts - lead to alveolar sacs
Alveolar sac - clusters of alveoli
Pulmonary alveoli - thin, pouch-like structures where gas exchange takes place
Apex - superior
Superior lobe
Middle lobe
Inferior lobe
Base - inferior
Apex - superior
Superior lobe
Cardiac notch
Inferior lobe
Base - inferior
Superior lobe
Hilum - area where bronchi, blood vessels, and nerves enter and leave the lungs.
Middle lobe
Inferior lobe
Superior lobe
Inferior lobe
Hilum - area where bronchi, blood vessels, and nerves enter and leave the lungs.
Cardiac notch
Visceral pleura - covers the surface of each lung
Parietal pleura - lines the thoracic cavity wall
Pleural cavity - space between layers containing pleural fluid
Diaphragm
Visceral pleura - covers the surface of each lung
Parietal pleura - lines the thoracic cavity wall
Right lung
Pleural cavity - space between layers containing pleural fluid
Left lung
