According to the Convex-Concave Law,the Convex Femoral Head During Hip

Multiple Choice

According to the convex-concave law,the convex femoral head during hip flexion moves in which direction in relation to the direction the femur moves?

A) Same direction
B) Opposite direction
C) First the same direction,then the opposite direction at the end of the movement
D) It depends on whether the person is standing or lying down.