LS.5.2.2 Body Systems and Their Functions

Front

What is the main function of the digestive system?

Back

To break down food so the body can absorb nutrients.

Front

What is the main function of the respiratory system?

Back

To bring oxygen into the body and remove carbon dioxide.

Front

What is the main function of the circulatory system?

Back

To move blood, oxygen, and nutrients through the body.

Front

What is the main function of the muscular system?

Back

To help the body move and support its shape.

Front

What is the main function of the skeletal system?

Back

To support the body and protect internal organs.

Front

What is the main function of the nervous system?

Back

To send messages between the brain and the body.

Front

What is a voluntary muscle?

Back

A muscle you can control, like your arm or leg muscles.

Front

What is an involuntary muscle?

Back

A muscle you cannot control, like your heart or stomach muscles.

Front

Which body systems work together when you exercise?

Back

Muscular, skeletal, circulatory, and respiratory systems.

Front

What is the difference between voluntary and involuntary muscles?

Back

Voluntary muscles move when you choose; involuntary muscles move automatically.