Function
Structure
Skeletal System
Digestive System
Circulatory System
100

It lets you think, remember, and feel.

What is the brain?

100

Organ systems are made of this. 

What are organs?

100

It protects the brain.

What is a skull?

100

It is how we eat and digest food. 

What is the digestive system?

100

It moves/pumps blood around inside the body.

What is a heart?

200

Oxygen from the air moves into the blood.

What do the lungs do? 

200

It connects the nose and mouth to the lungs. 

What organs does the windpipe connect together?

200

It protects the heart, lungs, and stomach. 

What are ribs?

200

It breaks food into smaller pieces.

What do the mouth and teeth do?

200

Blood is filled with _______ when it is pumped out to the body. 

What is oxygen?

300

It allows you to eat and talk.

What are the jaw muscles?

300

It gives your body shape.

What is the skeletal system?

300

It helps us stand up straight.

What is a backbone?

300
It moves the food around. 

What does a tongue do?

300

It moves blood around the body and carries nutrients to all cells, tissues, and organs.

What is the circulatory system?

400

It helps you digest difficult food. 

What is the large intestine? 

400

It connects to the brain.

What is the spinal cord?

400

It contains all the bones in your body. 

What is the skeletal system?

400

It uses chemicals to break down food for digestion. 

What does the stomach do?

400

It carries blood back to the heart.

What are veins? 

500

These tubes carry the blood out of the body.

What are arteries?

500

It lets your body bend. 

What is a joint?

500

It lets you bend your legs. 

What is a knee joint?

500

Water and nutrients move from the food into the blood. Then it can travel through the body to your cells.

What does the small intestine do? 

500

Blood is filled with ______ when it enters the heart. 

What is carbon dioxide?