Skeleton System

Where can you find the periosteum?

• on the outermost portion of your bone

• In the innermost portion of your bones

• Between the layers of spongy bone

Which term best describes compact bone?

• spongy

• flexible

• rigid

What fills the hollow of most bones?

• bone blood

• bone marrow

• spongy bone

What advantage do we gain from the fact that bones are hollow?

• We can move around easily

• Our bones don't fracture easily

• Our bones can make marrow easily

What is the main function of bone marrow?

• Supporting internal organs

• Producing blood cells

• Keeping the spine straight

What does the cartilage between bones do?

• Provides padding and protection against wear and tear

• Prevents bones from becoming too rigid

• Allows the nerves in adjacent bones to communicate with one another

What can you infer from the fact that babies have more bones than adults?

• Teenagers also have more bones than adults

• Babies shed some of their bones as they grow

• Some of babies' bones fuse together as they grow

What do tendons do?

• Attach skin to bones

• Attach muscles to bones

• Provide support for internal organs

The spine is made up of little ring-shaped bones called:

• Vertebrates

• Vertebrae

• Vertigo

What might happen if your spine were perfectly straight?

• Walking would be extremely uncomfortable

• Sitting would be extremely uncomfortable

• Lying down would be extremely uncomfortable