Chapter 1
The physical blender
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Chapter 2
The chemical cauldron
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Chapter 3
The ultimate self-defense
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Chapter 4
The brain-gut hotline
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YOUR GOAL
Master of Inside the human stomach
Ch 2 · The chemical cauldron
artiteacher The chemical cauldron
Melting steel in this cauldron, yeah! (But my mucus keeps me safe, oh-oh!)
Fun Fact
Acid strength: Stomach acid is so strong that it can dissolve metal, including steel razor blades, within 24 hours of contact.
Glossary
pepsin (noun)
An enzyme in the stomach that breaks down proteins into smaller peptides. In 1836, German physiologist Theodor Schwann discovered this substance, making it the first animal enzyme ever isolated.
An enzyme in the stomach that breaks down proteins into smaller peptides. In 1836, German physiologist Theodor Schwann discovered this substance, making it the first animal enzyme ever isolated.
Quiz
Which critical substance does the stomach secrete to allow vitamin B12 absorption?
Quiz
Which cells in the stomach lining are responsible for releasing hydrochloric acid?