epiglottis
Sinus
alveolus
expiration
bronchi
diaphragm
inhalation
bronchioles
cilia
trachea
small branches of the tubes leading into the lungs
branches of the trachea leading into lungs
Air-filled cavity that provides resonance for voice
muscle separating the chest and the abdomen
windpipe
the act of breathing air in
air sacs in the lungs
the act of breathing air out
thin hairs attached to the mucus membrane epithelium lining the respiratory tract
lid-like piece of cartilage covering the larynx