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MIDDLE SCHOOL

Life Science

Growth, Development, and Reproduction of Organisms

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Growth, Development, and Reproduction of Organisms: Human Body Systems

Digestive System

Description

Digestive System

The digestive system is how our body turns food into energy and nutrients. It’s made up of a series of connected organs that each have a specific role in the process of digestion. This includes breaking food into smaller parts, absorbing nutrients into the bloodstream, and removing waste. Starti...

Transcript

When you start chewing food, a process called digestion begins. The digestive system carries out this process by breaking down food into nutrients that help your body grow, heal, and stay strong.

There are two main steps in digestion: mechanical and chemical breakdown.

First is mechanical digestion. It starts in the mouth through a ...

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