How we breathe
Chapter 1
The engine of the breath
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Chapter 2
The gas exchange highway
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Chapter 3
The ultimate cleaning crew
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Chapter 4
Breathing at the extremes
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YOUR GOAL
Master of How we breathe
Ch 4 · Breathing at the extremes
Fun Fact
Space breathing: Astronauts on the International Space Station must sleep near fans so their exhaled carbon dioxide doesn't form a suffocating bubble around them.
Glossary
hypoxia (noun)
A deficiency in the amount of oxygen reaching the tissues of the body. During their 1953 Everest ascent, Edmund Hillary and Tenzing Norgay used supplemental oxygen to prevent this condition.
A deficiency in the amount of oxygen reaching the tissues of the body. During their 1953 Everest ascent, Edmund Hillary and Tenzing Norgay used supplemental oxygen to prevent this condition.
Quiz
At what water temperature is the mammalian dive reflex most strongly triggered in humans?
Quiz
How does the human body compensate for living at high altitudes over several weeks?