NUR 168 OXYGENATION AND PERFUSION
EXAM STUDY GUIDE
The upper airway warms, filters, and humidifies inspired air.
nose
The nostrils are utilized for breathing and smelling.
pharynx
A hollow, muscular tube inside the neck that begins behind the nose and opens into
the larynx and oesophagus.
larynx
the part of the throat that contains the vocal cords and is utilized for breathing,
swallowing, and speaking
epiglottis
the flap that covers the trachea while swallowing, preventing food from entering
the lungs.
Function of the Lower Airway/Tracheobronchial Tree
air conduction, mucociliary clearance, and pulmonary surfactant synthesis.
trachea
A lengthy, U-shaped tube connecting your larynx (voice box) to your lungs.
, The right and left mainstem bronchi
either of the big airways of the lower respiratory tract that diverge from the trachea
(windpipe) and link to the lungs.
Segmental bronchi
Within each lung, each primary bronchus separates into secondary or lobar bronchi,
one for each lobe.
Terminal bronchioles
the narrowest airways in the lungs, giving rise to alveolar sacs and ducts.
The number of lobes on the right lung
Three lobes
The number of lobes on the left lung
Two lobes
alveoli
tiny air sacs in which exchange occurs.
pleura
Serous membrane lining the lungs (visceral) and thoracic cavity (parietal).
Pulmonary ventilation
Air enters and exits the lungs.
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