🌬️01
The Respiratory Tract
Follow a breath from the nose down to the alveoli.
Open →🫧02
The Alveolus
See the respiratory membrane, where gases cross.
Open →😮💨03
Breathing Mechanics
See how the diaphragm and Boyle's law move air in and out.
Open →🔀04
Gas Exchange
See how partial pressures drive external and internal respiration.
Open →🚚05
Gas Transport
How oxygen and carbon dioxide are carried in the blood.
Open →📊06
Lung Volumes
Find tidal volume, reserves, and vital capacity on a spirometer trace.
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