- The largest bone is the femur, or the thigh bone.
- The smallest bone is in the ear.
- The hips and shoulders are called ball-and-socket joints.
- Your rib cage expands when you breathe.
- The largest bone is the femur, or the thigh bone.
- The smallest bone is in the ear.
- The hips and shoulders are called ball-and-socket joints.
- Your rib cage expands when you breathe.