Human Body Test Review (2nd Grade)

We pull on your bones to help you walk, smile and chew. We are all over your body.

I communicate with every part of your body. I control muscles, organs and pumping heart.

What is the main function of your heart?

Your brain helps you....

How much does your brain weigh?

I am the muscle located behind your lungs. I pump blood to all parts of your body.

Which of these are internal body parts?

I mix up your food with chemicals and then digest it into smaller pieces. What am I?

Which of these is a function of your muscles?

Which of these is an external body part?

I give your body support and structure. I am made up of 206 bones. What am I?

How big is your heart?

We take in oxygen from the air and put it in your blood stream. We take out bad carbon dioxide.