Respiratory Flashcards
adenoids
lymphatic tissue in the nasopharynx; pharyngeal tonsils
alveolus
air sac in lung
apex of lung
tip of lung
base of lung
lower portion of lung
bronchioles
smallest branch of bronchi. Terminal bronchioles lead to alveolar ducts.
bronchus, bronchi
branch of trachea that is a passageway into the lung; bronchial tube
carbon dioxide
gas produced by body cells when oxygen and carbon atoms from food combine; exhaled through the lungs
cilia
thing hairs attached to mucous membrane epithelium lining the respiratory tract.
diaphragm
muscle separating the chest and abdomen.
epiglottis
lid-like piece of cartilage that covers the larynx, prevents food from being inhaled
exhalation
breathing out; expiration
glottis
slit-like opening to the larynx
hilum of lung
midline region where the bronchi, blood vessels and nerves enter and exit the lungs
inhalation
breathing in; inspiration
larynx
voice box; containing the vocal cords
lobe
division of lung
mediastinum
region between the lungs in the chest cavity.
nares
openings through the nose carrying air into the nasal cavities; nostrils
oxygen
gas that makes up 21 percent of the air that we breathe.
palatine tonsil
one of 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 pluera
outer layer of pleura lying closer to the ribs
pharynx
throat; including nasopharynx, oropharynx and laryngopharynx
pleura
double layered membrane surrounding each lung
pleural cavity
space between the layers of the pleura
pulmonary parenchyma
essential parts of the lung, responsible for respiration; bronchioles and alveoli
respiration
exchange of gases at the lung capillaries and at the tissue capillaries
trachea
windpipe
