Revista de Morfología y Anatomía

Morphometric Surface Anatomy of the Pre and Postcentral Gyrus

Abstract

Adel Hajjay M

Objective: This research was especially aimed to build the knowledge of surface anatomy regard the pre and post central gyrus with their bone relationships.
Methods: Ten Sudanese formalin-fixed adult heads (right and left sides) were used to evaluate the craniometric measurement of Pre and Post central gyrus of the cerebral hemisphere. Scalp was removed then the skull was marked as two windows by blue marker (Superior parietal window and Inferior parietal window) the blue marked lines were cut by autopsy electrical saw and the meninges were removed and the cerebral cortex was exposed. The pre and post central gyrus were measured from the nearest bony landmarks of coronal suture, sagittal suture and superior temporal line.
Results: Precentral gyrus superior part was measured from the coronal suture posteriorly at a point crossing the sagittal suture (right 4.10 ± 0.74 cm, left 4.12 ± 0.79 cm), Precentral gyrus inferior part was measured from the coronal suture posteriorly at a point crossing the superior temporal line (right 3.18 ± 0.67 cm, left 2.97 ± 0.76 cm), Postcentral gyrus superior part was measured from the coronal suture posteriorly at a point crossing the sagittal suture (right 5.32 ± 1.02 cm, left 5.22 ± 0.95 cm), Postcentral gyrus inferior part was measured from the coronal suture posteriorly at a point crossing the superior temporal line (right 4.64 ± 0.61 cm, left 4.31 ± 0.79 cm).
Conclusion: The research found that there were clear relations between the pre and post central gyrus with the cranial bony landmarks.