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25 Cards in this Set

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  • Back
adenoids
collection of lymph tissue in nasopharynx; also called pharyngeal tonsils
alveolus (plural: alveoli)
air sac in the lung
apex of the lung
uppermost portion of the lung; tip, end or tip of a structure. Apical means pertaining to the apex
base of the lung
lower portion of the lung
bronchioles
smallest branch of the bronchi
carbon dioxide (CO2)
a gas produced by body cells when oxygen and food combine; exhaled through the lungs
cilia
thin hairs attached to the mucuous membrane epithelium lining the respiratory tract. They clear bacteria and foreign substances fron the lung. Smoking cigarettes impairs the function of the cilia
diaphragm
muscle separating the chest and abdomen. It is the most important muscle for breathing
epiglottis
Lid-like piece of cartilage that covers larynx, preventing food from entering larynx and trachea during swallowing
expiration
breathing out (exhalation)
glottis
opening to the larynx
hilum (of lung)
midline region of the lung where bronchi, blood vessels and nerves enter and exit the lungs. Hilar means pertaining to the hilum
inspiration
breathing in (inhalation)
larynx
voice box
lobe
division of the lung
mediastinum
region between the lungs in the chest cavity. It containg the trachea, heart, aorta, esophagus and bronchial tubes
oxygen (O2)
gas that passes into the bloodstream at the lungs and travels to all body cells
palatine tonsils
one of a pair of almond-shaped masses of lymphoid tissue in the oropharynx (palatine means pertaining to the roof of the mouth)
paranasal sinus
one of the air cavities in the bones near the nose
parietal pleura
the outer fold of pleura lying closest to the ribs and wall of the thoracic cavity
pharynx
throat; composed of nasopharynx, oropharynx, and laryngopharynx
pleura
space between the folds of the pleura
pulmonary parenchyma
the essential cells of lung, those performing its main function; the air sacs (alveoli) and small bronchioles
trachea
windpipe
visceral pleura
the inner fold of the pleura lying closest to the lung tissue