Dura Mater, Posterior View

Description

Posteriorly oriented, the meningeal dura mater is presented as the outer fibrous covering closely applied to the inner table of the calvaria and continuing inferiorly through the foramen magnum as the spinal dura. Along the posterior cranial fossa, the dural lining relates to the cerebellar hemispheres and vermis inferiorly and to the occipital lobes superiorly, while the dural sac descends in the vertebral canal to surround the spinal cord and nerve roots. Distally, that sac tapers toward the sacral canal, terminating around the level of S2 as it blends with the filum terminale externum. Two halves contrast context and content: one side retains the skull cap over the external brain contour, the other opens the cranial cavity to expose internal cerebral and cerebellar morphology deep to the dural envelope. Clear orientation. Fast to teach from. This posterior perspective matters when you need to anchor the cranial dura to what clinicians actually approach and violate. Midline suboccipital craniectomy and posterior fossa decompression for Chiari I malformation require dural opening and, in many cases, duraplasty, with the nearby dural venous sinuses and cerebellar surface dictating safe incision planning. Inferior extension to the spinal dura connects directly to lumbar puncture and epidural procedures, where dura puncture can produce post dural puncture headache and CSF leak, and to tethered cord discussions, where the distal dural sac termination and filum relationships are practical landmarks. Use this artwork in neuroanatomy and neurosurgical teaching to contrast the cranial vault with the meningeal covering, and to reinforce continuity of the dura mater from intracranial compartment to sacral canal. It also fits well in operative atlases or patient education materials explaining posterior fossa surgery, CSF pathways, and the meaning of a dural tear in spine care. Anatomical accuracy verified by SciePro's Medical Advisory Board.