Meet the Organs
Enzymes & Chemicals
The Journey of Food
Functions & Jobs
100

This muscular tube connects your throat to your stomach and uses wave-like muscle contractions called peristalsis to move food down.

what is the esophagus?

100

This watery liquid in your mouth contains enzymes that start breaking down starches and carbohydrates right away.

what is saliva?

100

This process happens when nutrients pass through the walls of your digestive system and into your blood.

what is absorption?

100

This painful, burning feeling in your chest happens when stomach acid leaks upward into your esophagus.

what is acid reflux?

200

This organ produces bile to help break down fats and processes nutrients absorbed from the small intestine.

what is the liver?

200

This is the type of digestion that uses chemicals and enzymes to break large food molecules into smaller nutrients.

what is chemical digestion?

200

These tiny, finger-like bumps line the inside of the small intestine to give it more surface area to absorb nutrients.

what is villi?

200

If your large intestine doesn't absorb enough water from waste, it results in this uncomfortable, watery condition.

what is diarhea?

300

This small, pear-shaped pouch sits under the liver and stores bile until it is needed in the small intestine.

what is the gallbladder?

300

This specific type of strong acid is found inside your stomach and helps kill bacteria while breaking down food.

what is stomach acid

300

The large intestine is responsible for absorbing this major, life-saving fluid so your body doesn't get dehydrated.

what is water?

300

If you stretched out an adult's entire digestive tract from end to end, it would be roughly this long in feet.

what is about 30 feet?

400

This long, coiled section of the GI tract is where roughly 90% of nutrient and water absorption happens, lined with tiny finger-like projections called villi.

what is the small intestine?

400

These special proteins act as biological catalysts to speed up the chemical breakdown of your food.

what are enzymes?

400

Millions of these helpful microscopic organisms live in your large intestine and help make essential vitamins like Vitamin K.

what is bacteria?

400

Your stomach is lined with a thick layer of this slippery substance to protect itself from being eaten away by its own strong acid.

what is mucus?