<prompt> The shoest diameter of fetal head :Biparietal diameterSuboccipitofrontal diameterOccipitofrontal diameterBitemporal diameter  <response>: Bitemporal and biparietal diameters are transverse diameters whereas suboccipitofrontal and occipitofrontal are the anteroposterior diameters Bitemporal diameter is 8 cm Ref: Datta Obs 9e pg 77. 