Human Brain, Heart and Lungs

Look at the picture. Which of the following body parts push air into the balloon to make it blow up?

• the heart

• the brain

• the lungs

Look at the picture. The brain is found in your head. What does the brain do?

• It digests food

• It pumps blood

• It lets you remember and feel

How does your body get oxygen?

• your lungs take oxygen in from air

• your brain takes oxygen in from air

• your stomach takes oxygen in from air

The diagram below is of a heart. What is the job of this body part?

• it digest food

• it pumps blood

• it tells your other body parts what to do

Which organ helps us think and controls learning and emotions?

• the heart

• the lungs

• the brain

• the stomach

When we breathe, we inhale oxygen and exhale ________.

• carbon dioxide

• oxygen

• carbon monoxide

• air

If Ms. Rodriguez does 25 jumping jacks, her heart rate will be _______ than before the jumping jacks.

• slower

• the same

• faster

• easier

Match the human body parts with their functions.

• breaks down food into nutrients

• lungs

• helps us breathe air

• heart

• pumps blood through the body

• brain

• controls everything the body does

• stomach