Body Systems

Front

What is the main function of the stomach?

Back

To mix food with digestive juices.

Front

What is the main organ in the circulatory system?

Back

Heart.

Front

Which is the main organ of the nervous system?

Back

Brain.

Front

How many muscles make up the human body?

Back

Over 600.

Front

What includes the brain, spinal cord, and neurons?

Back

Nervous system.

Front

What is the function of the heart?

Back

To pump blood throughout the body.

Front

What system is responsible for breathing?

Back

Respiratory system.

Front

What is the role of the lungs?

Back

To exchange oxygen and carbon dioxide.

Front

What organ filters waste from the blood?

Back

Kidney.

Front

What is the main function of the digestive system?

Back

To break down food and absorb nutrients.