How the lungs capture oxygen
Chapter 1
The architecture of the airway
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Chapter 2
The magic of the alveoli
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Chapter 3
The mechanics of the breath
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Chapter 4
Adapting to the extremes
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Chapter 5
The history of discovering respiration
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YOUR GOAL
Master of How the lungs capture oxygen
Ch 4 · Adapting to the extremes
Fun Fact
Snail lungs: Some land snails have a single lung that opens to the outside through a tiny breathing hole called a pneumostome.
Glossary
hypoxia (noun)
A state in which the body or a region of it is deprived of adequate oxygen supply at the tissue level. In 1978, Reinhold Messner climbed Mount Everest without bottled oxygen, demonstrating human resilience to this condition.
A state in which the body or a region of it is deprived of adequate oxygen supply at the tissue level. In 1978, Reinhold Messner climbed Mount Everest without bottled oxygen, demonstrating human resilience to this condition.
Quiz
Above what altitude do athletes typically train to trigger natural blood adaptation?
Quiz
Which hormone is released by the kidneys to stimulate red blood cell production at high altitudes?
Quiz
Why is thickening of the blood (polycythemia) a risky response to high altitude for lowlanders?