adenoids
inhalation
trachea
bronchi
cilia
expiration
epiglottis
alveolus
bronchioles
diaphragm
lid-like piece of cartilage covering the larynx
air sacs in the lungs
branches of the trachea leading into lungs
the act of breathing air out
small branches of the tubes leading into the lungs
lymphatic tissue in the nasopharynx
windpipe
muscle separating the chest and the abdomen
thin hairs attached to the mucus membrane epithelium lining the respiratory tract
the act of breathing air in
