Dura Mater Within a Human Male's Cut Skull Section, Gross Anatomy

Description

Removed along the left lateral cranial wall, the calvaria exposes the intracranial surface of the frontal, parietal, temporal, and occipital bones and the intact dura mater lining them. The meningeal layer of the dura adheres to the inner table and reflects medially to form dural partitions, with the falx cerebri expected along the midline between the cerebral hemispheres and the tentorium cerebelli spanning posteriorly between occipital bone and petrous temporal ridges. Anteriorly and inferiorly, the cut section leaves the orbit and nasal cavity margins as bony landmarks while the cerebral convexity sits deep to the dural covering. Dura meets bone. Attention to the dura mater matters because it defines the extra-axial compartment where clinically common processes live: epidural hematoma between skull and periosteal dura, subdural hematoma deep to the dura at the dural border cell layer, and meningioma arising from arachnoid cap cells with a broad-based dural attachment. A lateral cranial opening like this also mirrors the surgical corridor after a craniotomy, where preserving or incising dura controls exposure, brain relaxation, and the risk of venous sinus injury near dural reflections. Continuity with the spinal meningeal coverings is the bridge to understanding how intracranial pressure dynamics and dural pain referral track through the foramen magnum into the upper cervical canal. Neuroanatomy and neurosurgery teaching benefit from this cut skull section when explaining meningeal layers, dural reflections, and extra-axial versus intra-axial pathology, and it suits atlas plates on cranial cavity anatomy, traumatic brain injury chapters, or patient-facing materials on craniotomy and hematoma evacuation. Radiology educators can also pair it with CT and MRI examples of epidural and subdural collections to ground imaging signs in real spatial anatomy. Anatomical accuracy verified by SciePro's Medical Advisory Board.