Body Systems

What does the digestive system do?

• Breaks down and handles food

• Pumps blood throughout the body

• Helps you breathe

• Helps your arms and legs move

Which of the following is NOT part of the digestive system?

• mouth

• esophagus

• heart

• intestines

Where does digestion begin?

• mouth

• esophagus

• stomach

• intestines

This tube is made of smooth muscle and carries food from your mouth to your stomach.

• trachea

• intestines

• esophagus

• urethra

The main function of this organ is to break down and digest food to extract necessary nutrients.

• liver

• stomach

• esophagus

• lungs

Your body couldn't breathe without this system. Which one is it?

• circulatory

• skeletal

• respiratory

• urinary

When you breathe in air, you inhale oxygen into your lungs and exhale ________.

• carbon dioxide

• oxygen

• nitrogen

• carbon monoxide

The two major organs of the respiratory system where the gas exchange takes place are called _________.

• stomachs

• brains

• lungs

• nerves

The movement of blood through the heart and body is called ________.

• circulation

• ventriculation

• locomotion

• pumping heart

With circulation, the heart provides your body with which of the following? Choose the BEST answer.

• oxygen

• nutrients

• a way to get rid of waste

• all of the above