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How the lungs capture oxygen
5 chapters
74 assets
by teacher · 10 jul 2026
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Chapter 1
The architecture of the airway
1
The fractal tree inside you
2
The nasal filtration system
3
The trachea protective shield
4
The mucociliary escalator
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Chapter 2
The magic of the alveoli
1
A tennis court in your chest
2
The ultra-thin barrier
3
Surfactant prevents collapse
4
Red blood cells as cargo ships
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Chapter 3
The mechanics of the breath
1
The power of the diaphragm
2
Boyle's law in action
3
The ease of passive exhalation
4
The brainstem autopilot
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Chapter 4
Adapting to the extremes
1
Sherpa high-altitude genetics
2
Andean chest expansions
3
Deep-diving mammalian reflexes
4
Training at high elevations
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Chapter 5
The history of discovering respiration
1
Ibn al-Nafis and the lung loop
2
Aristotle's cooling theory
3
Lavoisier and the chemistry of life
4
The iron lung breakthrough
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