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Med.Term C.12 Vocab

Chabner, Language of Medicine 11th edition-Chapter 12 Vocabulary

VocabularyMeaning
adenoids Lymphatic tissue in the nasopharynx; pharyngeal tonsils
alveolus (plural: alveoli) Air sac in the lung
apex of the lung Tip or uppermost portion of the lung
base of the lung The lower portion of the lung
bronchioles The smallest branches of the bronchi
bronchus (plural: bronchi) The branch of the trachea (windpipe) that is a passageway into the lung; bronchial tube
carbon dioxide (CO2) Gas produced by body cells when oxygen and carbon atoms from food combine; exhaled through the lungs
cilia Thin hairs attached to mucous membrane epithelium lining the respiratory tract
diaphragm Muscle separating the chest and abdomen; contracts to pull air into lungs; relaxes to push air out
epiglottis Lid-like piece of cartilage that covers the larynx; keeps food from entering the larynx and trachea during swallowing
expiration Breathing out (exhalation)
glottis Slit-like opening to the larynx
hilum (of lung) Midline region where the bronchi, blood vessels, and nerves enter and exit the lungs
inspiration Breathing in (inhalation)
larynx Voice box; contains the vocal cords
lobe Division of a lung
mediastinum The region between lungs in the chest cavity; contains the trachea, heart, lymph nodes, aorta, esophagus, and bronchial tubes
nares Openings through the nose carrying air into the nasal cavities
oxygen (O2) Gas that makes up 21% of air; passes into the bloodstream at the lungs and travels to all body cells
palatine tonsil One of a pair of almond-shaped masses of lymphatic tissue in the oropharynx
paranasal sinus One of the air cavities in the bones near the nose
parietal pleura Outer fold of pleura lying closer to the ribs and chest wall
pharynx The throat; including the nasopharynx, oropharynx, and laryngopharynx
pleura Double-folded membrane surrounding each lung
pleural cavity Space between the folds of the pleura
pulmonary parenchyma Essential parts of the lung, responsible for respiration; bronchioles and alveoli
respiration The process of moving air into and out of the lungs; breathing
trachea Windpipe
visceral pleura Inner fold of pleura lying closer to the lung tissue
 



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