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Chabner Ch12 Vocabul

Respiratory System - Vocabulary

adenoids lymphatic tissue in the nasopharynx; pharyngeal tonsils.
alveolus pl-alveoli air sac in lung.
apex of the lung tip or uppermost portion of the lung. an apex is the tip of a structure. apical means pertaining to (at) the apex.
base of the lung lower portion of the lung; from the Greek basis, foundation. basilar means pertaining to the base.
bronchioles smallest branches of the bronchi. terminal bronchioles leans to alveolar ducts.
bronchus pl-bronchi 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 food combine; exhales through the lungs.
cilia thin hairs attached to the mucous epithelium lining the respiratory tract. they clear bacteria and foreign substances from the lung. Cigarette smoke impairs the function of cilia.
diaphragm muscle separating the chest and abdomen. it contracts and relaxes to make breathing possible.
epiglottis lid-like piece of cartilage that covers the larynx, preventing 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
Created by: mahepath