Last six marker you needed to mention about extensions and flexions at the knee and adduction and abduction of the leg because of the muscles, ie quadriceps and hamstring(mention these are an antagonistic pair and which one is the antagonist at each point and how gluteal muscles and abdominals move the leg from back to front , you basically just had to do a step by step of what each muscle was doing, you also had to mention the joint names like hinge joint or ball and socket, I've probably missed a load but if I carried on I would have to write my 6 marker!(could of also mentioned gastrocnemius to flex the foot up to kick the ball)