Digestive system organs step by step

Mouth

The mouth starts digestion. Teeth chew food. Saliva helps break it down.

Esophagus

A tube that connects the mouth to the stomach. It moves food with muscles.

Stomach

A muscular bag that holds food. It mixes food with acids and enzymes.

Small Intestine

A long tube where most digestion and nutrient absorption happens.

Large Intestine

Absorbs water from waste. Prepares waste for removal.

Liver

Produces bile, which helps digest fats. Filters toxins from blood.

Gallbladder

Stores bile until it is needed for digestion.

Pancreas

Produces digestive enzymes and hormones, like insulin.

True or false: The stomach absorbs nutrients.

False, because the stomach mainly digests food.

Difference between small and large intestine

Small intestine absorbs nutrients; large intestine absorbs water.

What does the liver do?

It produces bile, filters blood, and stores nutrients.

Fill in the blank: Bile helps digest ______.

fats.

Question: Where does most nutrient absorption occur?

In the small intestine.

True or false: The esophagus is part of the stomach.

False, because the esophagus is separate from the stomach.

What is the role of the pancreas?

It helps digest food and regulate blood sugar.