Sagittal Section of the Spinal Cord and Brain

Description

Medial sagittal sectioning of the head and vertebral column exposes the encephalon and spinal cord as a continuous column of blue neural tissue, with the medulla oblongata tapering inferiorly through the foramen magnum to become the cervical spinal cord. Superiorly, the cerebrum occupies the cranial vault, while the cerebellum sits posterior to the brainstem and inferior to the occipital lobe, maintaining its characteristic relationship to the fourth ventricle region. Along the vertebral canal, the cord lies posterior to the vertebral bodies and intervertebral discs and anterior to the spinous processes and laminae, with segmental spinal nerve roots exiting laterally toward the intervertebral foramina. Clear landmarks. Continuity at the cervicomedullary junction matters when you teach or plan around brainstem and upper cervical pathology. This view localizes where corticospinal and dorsal column pathways traverse the medulla before entering the spinal cord, a practical reference when correlating deficits from vertebrobasilar stroke, Chiari I malformation at the foramen magnum, or compressive myelopathy in the cervical canal. It also supports procedural orientation for posterior fossa and craniovertebral junction approaches, where millimeters separate the medulla, cerebellum, and upper cord from bony confines. Neuroanatomy and gross anatomy courses use this figure to anchor spatial relationships between cerebrum, cerebellum, brainstem, and vertebral levels, then map them to spinal cord segments and exiting roots. It also fits well in neurology and neurosurgery teaching files, radiology primers on sagittal MR correlation, and textbooks illustrating cervicomedullary continuity within the skull base and vertebral column. Anatomical accuracy verified by SciePro's Medical Advisory Board.