Skeletal System
Digestive System
Respiratory System
Nervous System
Circulatory System
100
This part of the skeleton is composed of several bones and protects the brain.
What is the skull?
100
These structures, also part of the skeletal system, crush that has entered the mouth.
What are the teeth?
100
These balloon like sacs that inflate and deflate, bringing air into and out of the body.
What are the lungs?
100

The signals are sent here. 

What is the brain?

100
These disc shaped cells transport oxygen from the lungs to the other parts of the body.
What are red blood cells?
200

The primary two functions of the skeletal system are...

What is support and protection?

200
Food travels down this long tube from the mouth to the stomach.
What is the esophagus?
200

This is the main function of the respiratory system (be specific). 

What are breathing (exchanging oxygen for carbon dioxide)?

200
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?
200
Double Jeopardy: These blood cells are a vital part of the body's immune system.
What are white blood cells?
300

The connection between bones is called.

What is a joint?

300
The millions of tiny finger-shaped structures that cover the inner surface of the small intestine and provide a large surface area through which digested food is absorbed.
What are the villi?
300
This chemical is in the air we breathe and we need it to survive.
What is oxygen?
300
Bundles of fibers found throughout the body that sends electrical impulses to and from the brain to the other body structures.
What are nerves?
300

This carries blood away from the heart. 

What are arteries?

400
The internal, and spongy, portion of the bone that produces blood cells.
What is the marrow?
400
Double Jeopardy: This chemical aids in digestion by speeding up chemical reactions.
What is an enzyme?
400
This chemical is exhaled by animals, but plants "breathe" it in and use it to produce oxygen.
What is carbon dioxide?
400

Tiny cells which send signals to the brain. They are also known as nerve cells.

What is a neuron?

400

Carry blood to the heart. 

What is a vein? 

500

This helps us stand up right and we have many in our back. 

What is the vertebrae?

500

This organ is where nutrients are absorbed in the bloodstream. 

What is the intestines?

500

This sticky substance protects and filters before air reaches our lungs. 

What is mucus or boogers?

500

The nervous system can control ________ and __________ actions. 

What is voluntary and involuntary?

500

This exchanges oxygen, nutrients, and waste.  

What are the capillaries?

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