Bone that protects the brain.
Flap that controls passage of food and air.
Largest organ in our body.
Disease of the skeletal system that causes bones to become weak and brittle.
Muscle tissue found only in the heart.
Blood cells that help fight off infection.
White blood cells
Moving air in to the lungs by contracting the diaphragm is called.
Saliva is a digestive juice produced in the.
Soft connective tissue of the skeletal system.
These muscles work with the skeleton to create movement.
The excretory system works closely with this system to eliminate waste.
These help blood to clot properly.
The tube that connects the mouth with the stomach is the.
The largest artery in the body.
Disease causing invaders are called.
This system releases energy for cells to use.
This system eliminates waste.
This system defends the body against illness.
Immune (Lymphatic) System
This system consists of heart, blood, and blood vessels.
This system is washable and stretchable.
This system is the control center.
This systems aids in the movement of our bodies.
This system breaks down food to provide nutrients and create waste.
The outer region of the skin.
Digestion begins in the
Carries the messages from the brain to other parts of the body.
The structure that transports indigestible waste is the.
Another name for the kneecap.
The commander of the nervous system.
These carry blood away from the heart.
These carry blood back to the heart.
The name for the calf muscle.
The bones at the tips of the fingers and toes.
The upper chambers of the heart.
The lower chambers of the heart.