collection that lymh organization in the nasopharynx; additionally called pharyngeal tonsils
alveolus (plural: alveoli)Air sac in the lung
apex of the lungUppermost section of the lung. Apical means pertaining come the apex.

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base of the lunglower portion of the lung
bronchiolessamllest branches of the bronchi
bronchus (plural: bronchi)branch that the trachea (windpipe) the acts together a passageway into the waiting spaces the the lung; bronchial tube
carbon dioxide (CO2)A gas created by human body cells when oxygen and food combine; exhaled with the lungs.
ciliathin hair attached come the mucous membrane epithelium lining the respiratory tract tract.
diaphragmmuscle separating the chest and abdomen. It is the most necessary muscle for breathing.
epiglottisLid-like item of cartilage that covers the larynx.
exhalationbreathing the end (expiration)
external respirationexchange the gases in the lungs.
glottisthe opening to the larynx
hilum (of lung)midline an ar where the bronchi, blood vessels, and also nerves enter and also exit the lungs. Hilar means pertaining come the hilum.
inhalationbreathing in (inspiration)
internal respirationexchange the gases in ~ the organization cells
larynxvoice box
lobesdivisions the the lungs
mediastinumregion in between the lung in the chest cavity. It has the trachea, heart, aorta, esophagus, and bronchial tubes
oxygen (O2)Gas that pases into the bloodstream at the lungs and travels to every body cells
palatine tonsilsrounded masses that lymph tissue in the oropharynx (palatine method roof the the mouth)
paranasal sinusesair-containing cavities in the bones near the nose.
parietal pleurathe outer fold that pleura lying closest to the ribs and wall of the thoracic cavity.

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pharynxthroat; created of the nasopharynx, oropharynx, and also laryngopharynx
pleuradouble-folded membrane bordering each lung
pleural cavityspace between the crease of the pleura
pulmonary parenchymathe vital cells that the lung, those performing its main function; the air bag (alveoli) and tiny bronchioles.
visceral pleurathe inner fold of pleura lying closest to the lung tissue