This system provides support and shape to your body, enables you to move, protects your organs, produces blood cells, and stores minerals (like calcium)
What is the skeletal system
100
Your backbone, or spine, is made up of 26 small bones called
What are vertebrae?
100
These little finger-shaped bumps line the small intestine are serve to absorb nutrient molecules into the bloodstream.
What are the villi?
100
This muscle pumps blood throughout your body.
What is the heart?
100
These muscles are attached to your skeleton and provide force to move your bones.
What are skeletal muscles?
200
The parts of this system are divided into three types -- smooth, skeletal, and cardiac. The system is the part of your body that makes your bones move, your hear beat, your lungs breath, etc.
What is the muscular system?
200
This is a place in your body where two bones come together. They can be movable or immovable.
What are joints?
200
This organ produces bile, a substance which breaks up fat particles in the stomach.
What the liver?
200
The two upper chambers of the heart receive blood that comes onto the heart. This part of the heart is called the
What is the atrium?
200
These muscles are found inside your organs, and move involuntarily, or without automatically without your thinking about them.
What are smooth muscles?
300
This system breaks down food into small parts (molecules) that the body can use, and then allows the molecules to be absorbed by the body.
What is the digestive system.
300
Demonstrate the movement of a hinge joint>
What is moving back and forth like a door?
300
Name the five stages of the digestive system.
What is the mouth, the esophagus, the stomach, the small intestine, and the large intestine.
300
Blood vessels that carry blood away from the heart.
What are arteries?
300
This type of muscle is found only in your heart.
What is the cardiac muscle?
400
This system carries needed substances to cells and carries waste products away from cells.
What is the circulatory system.
400
These are examples of ball and socket joints in your body.
What are the shoulder and the hips?
400
This organ is over 6 meters (18 feet) long, even though its name would indicate the opposite.
What is the small intestine.
400
These blood vessels carry blood back to the heart.
What are veins?
400
Why do skeletal muscles work in pairs?
They can only contract. They cannot extend. While one muscle contracts, the other muscle in the pair relaxes to its original length.
500
This system moves oxygen from the outside environment into the body. It also removes carbon dioxide and water from the body.
What is the respiratory system?
500
These are the three layers of a bone.
What are the compact bone, the spongy bone, and the marrow?
500
This triangular organ produces enzymes that flow into the small intestine and help break down starches, proteins, and fats.
What is the pancreas?
500
This is the largest artery in the body.
What is the aorta?
500
What are two ways to prepare the muscles for exercise?