
The gateway of the mouth
The acid chamber of the stomach
The nutrient highway of the small intestine
The recycling plant of the large intestine
YOUR GOAL
Master of The human digestive system
artiteacher Stomach Acid
With acid strong enough to melt down steel, A brand-new mucus shield protects each meal.

artiteacher Three distinct muscle layers vigorously churn food into a semi-liquid mixture called chyme.

artiteacher A specialized mucus barrier prevents the stomach's powerful acids from destroying its own tissue.
Stomach steel: Your stomach acid is so potent it can dissolve a metal razor blade within 24 hours.
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.
Which US Army surgeon discovered how stomach acid works by experimenting on a patient with an open stomach wound?
What is the name of the semi-liquid mixture of partially digested food and stomach juices?
How many distinct muscle layers does the human stomach have to churn and grind food?
What is the name of the muscular valve that regulates the release of food from the stomach into the small intestine?
Which specialized cells in the stomach lining are responsible for secreting hydrochloric acid?
How often does the human stomach lining completely regenerate itself to prevent acid damage?
What is the primary chemical component of the protective barrier that stops stomach acid from digesting the stomach itself?

