<prompt> Anterior gliding of tibia on femur prevented by -Anterior cruciate ligamentPosterior cruciate ligamentLigament of humpreyLigament of wriesberg  <response>: Ans. is a i.e., Anterior cruciate ligament ACL provides antero-posterior stability and prevents anterior gliding of tibia on femur and prevents hyperextension. PCL prevents posterior gliding subluxation of tibia over femur. 