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How we breathe
4 chapters
55 assets
by teacher · 10 jul 2026
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Chapter 1
The engine of the breath
1
The dome that drives your breath
2
The nose as climate control
3
The windpipe and its cartilage rings
4
The volume of a normal breath
5
How the brain sets the rhythm
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Chapter 2
The gas exchange highway
1
The microscopic forest of alveoli
2
The magic of passive diffusion
3
Hemoglobin the molecular delivery truck
4
The waste product we must expel
5
The speed of a single red blood cell
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Chapter 3
The ultimate cleaning crew
1
The sticky trap of airway mucus
2
The microscopic escalator of cilia
3
The explosive power of a sneeze
4
The deep cellular guard dogs
5
How coughing clears the lower pipes
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Chapter 4
Breathing at the extremes
1
Surviving thin air at high altitudes
2
The mammalian dive reflex
3
The limits of holding your breath
4
How exercise changes your lung capacity
5
Breathing in microgravity and space
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YOUR GOAL
Master of How we breathe
