Support Systems eliott mikesch

the skeletal and muscular system

SKELETON SYSTEM

There are 206 bones in the body. You have cartilage on your nose and in your ears. Another name for the back bone is called the spine. Babies have 305 bones. There is marrow inside bones. Some bones are flat or long.Blood vessels and other parts help keep the the body going. The muscle of the body must move the bone. Skull protects the brain.

Ball and Socket joint

The hip is a ball and socket joint. It moves like a joystick on a computer.