Show:
Skeletal System
Digestive System
Respiratory System
Nervous System
Circulatory System
100

These hard structures protect organs and support the body.

What are bones?

100

This organ uses acid to break down food.  

What is the stomach?

100
These balloon like sacs that inflate and deflate, bringing air into and out of the body.
What are the lungs?
100

This organ is the body’s control center.

What is the brain?

100

This organ pumps blood.

What is the heart?

200

This part of the skeletal system protects the heart and lungs.

What is the rib cage?

200
These structures, also part of the skeletal system, crush that has entered the mouth.
What are the teeth?
200

This chemical is in the air we breathe and we need it to survive.

What is oxygen?

200
Bundles of fibers found throughout the body that sends electrical impulses to and from the brain to the other body structures.
What are nerves?
200

The body system that the circulatory system receives oxygen from.

What is the respiratory system?

300
This part of the skeleton is composed of several bones and protects the brain.
What is the skull?
300
Food travels down this long tube from the mouth to the stomach.
What is the esophagus?
300
This chemical is exhaled by animals, but plants "breathe" it in and use it to produce oxygen.
What is carbon dioxide?
300
The central nervous system is composed of the brain as well as this long structure that extends down the back and is the connector between the brain and all other parts of the body.
What is the spinal cord?
300
These disc shaped cells transport oxygen from the lungs to the other parts of the body.
What are red blood cells?
400
The internal, and spongy, portion of the bone that produces blood cells.
What is the marrow?
400

This organ absorbs most nutrients from food.

What is the small intestine?

400

These tiny air sacs in the lungs exchange gases.

What are alveoli?

400

These are quick automatic responses controlled by the nervous system.

What are reflexes?

400
Double Jeopardy: These blood cells are a vital part of the body's immune system.
What are white blood cells?
500

This is the place where two bones meet and allow movement.

What is a joint?

500

This organ produces bile to help digest fats.

What is the liver?

500

This muscle helps control breathing by moving up and down.

What is the diaphragm?

500
Tiny cells which send signals to the brain. They are also known as nerve cells.
What are neurons?
500

These carry blood back to the heart.

What are veins?