The Digestive System - Science Fun World

The Digestive System

Primary 4

ComponentsMouth

Gullet

Stomach

Small intestine

Large intestine

Anus

Mouth

• Teeth grinds food intosmaller pieces.

• Saliva in the mouth helps tosoften the food

Gullet

• The tube that connects yourmouth and your stomach

• It is 25cm long

Stomach

Gullet

Stomach• A stretchy bag that holds your

food after you eat

• Helps to break food intosmaller pieces so your body canuse it for energy and nutrition

Small Intestine

Small Intestine

• Tube that is about 608cm long.

• Continues to digest food

• Food stays in your small intestine for 4 to 8 hours

Large Intestine

Large Intestine

• Tube that is about 152 cm long

• Gets waste from small intestine

• Waste stays for 10 to 12 hours

Anus

• Passes waste out of the body