Research of the corresponding between medullary processes and frontal gyri on horizontal sections

Objective To explore the location of frontal gyrus by the processus neuralis in transection,to provide morphological data for imageology.Methods Twenty normal cadaver heads were chose,6 mm brain slices were cut after stained superior frontal gyrus,middle frontal gyrus,inferior frontal gyrus,chose the typical planes to observe and measure the relation between processus neuralis and superior frontal gyrus,middle frontal gyrus,inferior frontal gyrus on horizontal sections and summarize the rules.Results The processus neuralis on direction of 12:00-12:30 hour hand were corresponding to superior frontal gyrus.The processus neuralis on direction of 12:30-1:00 hour hand(right side),and 10:30-11:30 hour hand(right side) were corresponding to middle frontal gyrus.The processus neuralis on direction of 2:00-3:00 hour hand(right side),and 9:00-11:00 hour hand(right side) were corresponding to inferior frontal gyrus.Conclusion The corresponding rules between processus neuralis and superior frontal gyrus,middle frontal gyrus,inferior frontal gyrus are obtained.So it may localize superior frontal gyrus,middle frontal gyrus,inferior frontal gyrus by processus neuralis on image.