Position Relationship Of The Cranial Sutures And The Cortical Surfaces

Objective:To research the position relationship between cranial sutures and cortical surfaces. To locate the position of cranial surgery according to the position of cranial sutures.Method:To dissect ten cases of adult cadaveric head, to reserve skull coronal suture, sagittal suture, lambdoid suture, squamosal suture and superior temporal line, to wear the rest of the skull bone in order to expose the location of relationship between the cortical surfaces and the cranial sutures.Results:The coronal suture in the adult skull in front of the precentral sulcus crosses the posterior part of the superior, middle, and inferior frontal gyri. Coronal suture points on the dot pitch of about 4.45±0.44cm on the central sulcus, from the central sulcus coronal suture under the point of the lower part of the horizontal distance of about 2.36±0.22cm, thus coronal suture has a little posterior slope than the central sulcus. The upper of the squamosal suture slit in the bottom of the front of the sylvian fissure and posteriorly turns downward to cross the middle temporal gyrus and the posterior inferior temporal gyrus. The anterior part of the superior temporal line overlies the inferior frontal sulcus, extends posteriorly near the junction of the middle and lower thirds of the pre- and postcentral gyri, and turns downward, crossing the supramarginal and angular gyri and the posterior temporal lobe.The upper of the lambdoid suture crosses the parietal lobe, after crossing the line laid down outside parieto-occipital sulcus to terminate in the asterion.Conclusions In craniotomy, familiar with the position relationship between cranial sutures and cortical surfaces is conducive for craniotomy bone flap in the correct formation of the skull, achieving correct specific parts of the brain and intracranial leaf.