what do our skull and ribs do? they protect our organs,heart,and lungs.
our bones are there so our muscles can tug on them and move them.
joints are where two or more bones meet and this is where movement is.
fixed joints are bones that will not move.
a hinge joint is like a hinge on a door it can only move 2 ways.
there are only 1-4 hinge joints.
there is a thing called the ball and joint socket,and the ball fits in the socket,example its like the power brick plugging into the electrical socket.
one of the ball socket joints is the hip and shoulder.
there are also gliding joints
there are more than 200 bones in our body.
a skull is like a helmet its protects your brain.
a adult has about 206 bones a baby has as many as 270 bones.
joint:two joints come together.
ligaments: stretchy bands that keep your bones together.