ARTi

The human digestive system

Chapter 1

The gateway of the mouth

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Answer

Chapter 2

The acid chamber of the stomach

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Answer

Chapter 3

The nutrient highway of the small intestine

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Chapter 4

The recycling plant of the large intestine

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YOUR GOAL

Master of The human digestive system

Ch 2 · The acid chamber of the stomach
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artiteacher The discovery of gastric digestion

Jul 12

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artiteacher How the stomach avoids digesting itself

Jul 12

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artiteacher The mechanical churning of gastric muscles

Jul 12

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artiteacher The chemistry of stomach acid

Jul 12

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Fizzy Belly Splash

artiteacher Fizzy Belly Splash

Jul 10

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artiteacher Stomach Acid

With acid strong enough to melt down steel, A brand-new mucus shield protects each meal.

Jul 10

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The mechanical churning of gastric muscles

artiteacher The mechanical churning of gastric muscles

Jul 10

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artiteacher
Fun Fact

Stomach steel: Your stomach acid is so potent it can dissolve a metal razor blade within 24 hours.

Jul 10

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How the stomach avoids digesting itself

artiteacher How the stomach avoids digesting itself

Jul 10

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Glossary
hydrochloric acid (noun)
A strongly acidic, corrosive solution of hydrogen chloride in water. In 1824, English chemist William Prout first identified this substance as the primary acid in stomach secretions.

Jul 10

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Quiz

Which US Army surgeon discovered how stomach acid works by experimenting on a patient with an open stomach wound?

Jul 10

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Gossip

Which spicy food level is your absolute limit?

Jul 10

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Quiz

What is the name of the semi-liquid mixture of partially digested food and stomach juices?

Jul 10

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Quiz

How many distinct muscle layers does the human stomach have to churn and grind food?

Jul 10

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Quiz

What is the name of the muscular valve that regulates the release of food from the stomach into the small intestine?

Jul 10

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Quiz

What is the typical pH range of healthy human gastric juice in the stomach?

Jul 10

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Quiz

Which specialized cells in the stomach lining are responsible for secreting hydrochloric acid?

Jul 10

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Quiz

How often does the human stomach lining completely regenerate itself to prevent acid damage?

Jul 10

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Quiz

What is the primary chemical component of the protective barrier that stops stomach acid from digesting the stomach itself?

Jul 10