lymphatic tissue in the nasopharynx; pharyngeal tonsils
air sac in the lung
apex of the lung
tip or uppermost portion of the lung. An apex is the tip of a structure.
base of the lung
Lower portion of the lung
smallest branches of the bronchi.
branch of the trachea (windpipe) that is a passageway into the lung.
gas produced by body cells when oxygen and food combine; exhaled through the lungs.
thin hairs attached to the mucous membrane lining the respiratory tract
muscle separating the chest and abdomen
a lid like piece of cartilage that covers the larnyx.
breathing out; exhalation
middle region where bronchi, blood vessels, and nerves enter and exit the lungs
breathing in (inhalation)
voicebox; contains the vocal cords
region between the lungs in the chest cavity
openings through the nose carrying air into the nasal cavities
gas that passes into the bloodstream at the lungs and travels to all the body cells.
one pair of almond-shaped masses of lymphatic tissue in the oropharynx.
one of the air cavities in the bones near the nose.
outer fold of pleura lying closer to the ribs and chest wall
double-folded membrane surrounding each lung
space between the folds of the pleura
essential parts of the lung, responsible for respiration; bronchioles and alveoli
process of moving air into and out of the lungs; breathing
inner fold of pleura lying closer to the lung tissue
division of a lung