Human Body Systems

Front

Where does digestion start?

Back

Mouth

Front

Which system is the stomach in?

Back

Digestive system

Front

Which system has the brain as the main organ?

Back

Nervous system

Front

Which organ is in the digestive system?

Back

Stomach

Front

The smallest units or parts of living things; the body's building blocks.

Back

Cells

Front

What is the main function of the digestive system?

Back

To break down food and absorb nutrients.

Front

What organ is responsible for pumping blood throughout the body?

Back

Heart

Front

Which system is responsible for breathing?

Back

Respiratory system

Front

What are tissues made of?

Back

Groups of similar cells that work together.

Front

What is the function of the skeletal system?

Back

To provide structure and support to the body.