Answer:
Ball and socket
Explanation:
The leg goes in this order:
Pelvis
Ball and socket
Femur
Knee joint
Tibia
Foot
I currently have braces and at first they are going to cause a slight pain to your teeth, make sure you brush them even more then usual and more thoroughly, brush your teeth after each meal if possible.
They will cheat the rest and won't get an accurate eye exam