Skeletal
Digestive
Circulatory
Nervous
Respiratory
100

This organ makes up the entire skeletal system.

What is bone?

100

This part of the system chews food so that it can be swallowed. 

What are teeth?

100

This organ pumps blood through the veins.  

What is the heart?

100

This is the control center for your body.

What is the brain?

100

This organ pumps oxygen into your body. 

What are the lungs? 

200

This bone protects your brain. 

What is the skull?

200

After being chewed, food is sent to this organ. 

What is the stomach?

200

These tubes carry blood towards your heart. 

What are veins? 

200

This part of the nervous system is inside of your spine.

What is the spinal cord. 

200

This organ directs oxygen from your nose and mouth to your lungs. 

What is the windpipe?

300

These foods strengthen the skeletal system.

What are foods that contain calcium? 

300

This substance that is produced in the mouth soften foods.

What is saliva.

300

This is the color of blood that has no oxygen.  

What is blue?

300

These cells use electrical signals to communicate to other parts of the body. 

What are neurons? 

300

When you breath, your body takes in this gas.

What is oxygen?

400

This is where two or more bones meet. 

What is a joint?

400

This organ moves solid waste to the outside of your body.

What is the large intestine? 

400

These tubes move oxygenated blood away from the heart. 

What are arteries? 

400

This part of the nervous system allows your skin to interpret temperature, pressure, and pain.

What or nerves? 

400

When you exhale, your body expels this gas. 

What is carbon dioxide? 

500

The number of bones in an adult human body.

What is 206? 

500

This organ finishes changing food into a form that your body can use. 

What is the small intestine?

500

This part of the vein keeps blood from flowing backwards. 

What is a valve. 

500

This part of the nervous system controls all body functions that happen automatically. 

What is the autonomic nervous system?

500

The respiratory system supplies this system with oxygen, which is then carried throughout the body. 

What is the circulatory system?