Examination of the exposed calvarium. (a) The exposed calvarium shows the presence of the coronal and lambdoid sutures. The vertical displacement of the sagittal strip is apparent at bregma. At the sagittal strip—parietal bone junction (dashed lines), there are areas of bridging bone and fibrous bridging tissue. (b) Internal view of the calvarium. Black arrowheads—large arachnoid granulations. (c) Torus palatinus is evident in the midline (arrow) with the epithelium reflected.