<prompt> Longest diameter of fetal skull is:BiparietalBitemporalOccipito temporalSubmentovertical  <response>: Ans. is d, i.e. SubmentoverticalRef. Dutta Obs 9e p 77-78Remember:Smallest diameterLongest diameterIst Bimastoid diameterIInd Bitemporal diameterIst Mento verticalIInd Submento verticaloccipitofrontal 