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
Tiny cells which send signals to the brain. They are also known as nerve cells.
What are neurons?
100
These disc shaped cells transport oxygen from the lungs to the other parts of the body.
What are red blood cells?
200

the largest bone 

What is the femur?

200

part of the digestive system that aids in digestion, but food does not enter

What is the liver?

200
Small sacks in the lungs which allow oxygen and carbon dioxide to move between the lungs and blood stream.
What are aveoli?
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 functions of the skeletal system

What are protection, producing blood cells, support/structure ?

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
The chamber in the heart that pushes blood out of the heart and to the other parts of the body.
What is the ventricle?
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
A long, slender projection of a nerve cell that typically conducts electrical impulses away from the cell's body.
What is an axon?
400

the side of the heart that pumps oxygenated blood throughout the body

What is the left side?

500

The tissue that connects bones to other bones.

What are ligaments?

500
The name for the soft tissue that hangs down in the back of the mouth.
What is a uvula?
500

large curved muscle that aids in respiration

What is the diaphragm?

500
A structure that permits a neuron to pass an electrical or chemical signal to another neuron.
What is a synapse?
500
These chambers bring blood into the heart from elsewhere in the body.
What are the atria (singular: Atrium)?
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