Ch. 12 Respiratory System: Vocabulary Flashcards
Adenoids
lymphatic tissue in the nasopharynx; pharyngeal tonsils
Alveolus (pleural: alveoli)
air sac in the lung
Apex of the lung
tip of the lung
Base of the lung
lower portion of the lung
Bronchioles
smallest branches of the bronchi
Bronchus (pleural: bronchi)
branch of the trachea (windpipe) that is a passageway into the lung; bronchial tube
Carbon dioxide
exhaled through the lungs
Cilia
thin hairs attached to the mucous membrane epithelium lining the respiratory tract
Diaphragm
muscle separating the chest and abdomen
Epiglottis
lid-like piece of cartilage that covers the larynx, preventing food from entering the larynx and trachea during swallowing
Expiration
breathing out
Glottis
slit-like opening to the larynx
Hilum of the 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
Nares
openings through the nose carrying air into the nasal cavities
Palatine tonsil
one of a 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 pleura
outer layer of pleura lying closer to the ribs and chest wall
Pharynx
throat
Pleura
double-layered membrane surrounding each lung
Pleural cavity
space between the folds of the pleura
Pulmonary parenchyma
bronchioles and alveoli; essential parts of the lung, responsible for respiration
Respiration
breathing
Trachea
windpipe
Visceral pleura
inner layer of pleura lying closer to the lung tissue
