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Ch.12 Vocab resp

Vocabulary ch.12 Respiratory System

adenoids collection of lymph tissue in the nasopharynx; also called pharyngeal tonsils
alveolus air sac in the lung
apex of the lung uppermost portion of the lung
base of the lung lower portion of the lung
bronchioles smallest branches of the bronchi
bronchus branch of the trachea that is a passageway into the air spaces of the lung; bronchial tube
carbon dioxide a gas produced by body cells when oxygen and food combine; exhaled through the lungs
cilia thin hairs attached to the mucous membrane epithelium lining the respiratory tract
diaphragm muscles separating the chest and abdomen. most important muscle for breathing
epiglottis lid-like piece of cartilage that covers the larynx, preventing food from entering the larynx and trachea during swallowing
exipration breathing out
glottis opening to the larynx
hilum (of lung) midline region where the bronchi, blood vessels, and nerves enter and exit the lungs
inspiration breathing in
larynx voice box
lobe division of a lung
mediastinum region between the lungs in the chest cavity, contains trachea, heart, aorta, esophagus, bronchial tubes
oxygen gas that passes into the bloodstream at the lungs and travels to all body cells
palatine tonsil one of a pair of almond-shapes masses of lymphoid tissue in the oropharynx
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 the nasopharynx and laryngopharynx
pleura double-folded membrane surrounding each lunch
pleural cavity space between the folds of the pleura
pulmonary parenchyma the essential cells of the lung, those performing its main function; the air sacs and small bronchioles
trachea windpipe
visceral pleura the inner fold of pleura lying closest to the lung tissue
Created by: funnykitty24