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30 Cards in this Set

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Respiration
interchange in gases, such as taking in oxygen to eliminate carbon dioxide. Also known as breathing.
inhalation
breathing in of air, also known as insipration
exhalation
breathing out of air, also known as expiration.
Respiratory system
consists of the nose, nasal cavity, and pharynx, larynx, trachea, bronchi, and lungs.
external nares (nostrils)
allow both inspiration and expiration of air.
cilia
in the nares filter out dust particles in the air.
nasal cavity
extends from teh external nares to the pharynx
nasal septum
divides the right and left nasal cavity
The nasal cavity warms and moistens air and provides us with our sense of smell through ______ in the lining of the nasal tract.
olfactory neurons
paranasal sinuses
hollow spaces within the skull, that lighten the skull. Lined with mucus membranes
nasopharynx
is posterior to the nasal cavity. Contains the adenoids, or pharyngeal tonsils.
internal nares
open into the nasal cavity and two others that open into the eustachian tube
oropharynx
posterior to the oral cavity and contains the paltine tonsils and the lingual tonsils
laryngopharynx
opens into the larynx and esophagus
larynx
voice box
Adam's apple
a large shield of cartilage protecting inner structures
epiglottis
which swings up and down like a lid, covering the opening of the larynx during swallowing so that the air passage is sealed.
vocal cords
responsible for sound, are folds of mucous membrane
glottis
slit btween the vocal cords
trachea
windpipe that extends from the larynx to the bronchi.
bronchial asthma
in which the bronchus goes into spasm, cutting off the patient's air supply.
paroxysmal dyspnea
which is difficulty in breathing of an off-and-on nature.
apex
top of each lung
base
bottom of each lung
alveoli
like tiny balloons, expanding and contracting with inspiration and expiration
pulmonary capillaries
which deliver carbon dioxide to the alveoli and absorb oxygen from them. THe carbon dioxide is then expelled form the lungs, and the oxygenated blood continues on to the heart, to be pumped to the cells of the body.
pleural cavity
surrounds the lungs
mediastinal cavity
lies between the lungs and containg the heart, aorta, trachea, and esophagus.
coni/o
dust
oligo-
scanty; few