Complete Nervous System

Description

Posterior anatomy centers on the brainstem and spinal cord as the continuous core of the central nervous system, housed within the vertebral canal and aligned along the midline from the foramen magnum to the conus medullaris. Paired dorsal roots and dorsal root ganglia give rise to segmental spinal nerves that course laterally through the intervertebral foramina, then divide into dorsal and ventral rami, forming a symmetric yellow nerve network across the neck, thorax, abdomen, pelvis, and proximal limbs. Cervical enlargement and lumbosacral enlargement are suggested by the denser branching proximally, with peripheral nerves fanning distally across the posterior trunk. Midline landmarks of the vertebral column frame the neural axis. Posterior nervous system views matter because they match how clinicians localize deficits during a neurologic exam and how many operative exposures are planned. Radicular pain patterns (for example, C6, L5, or S1) track from dorsal root irritation in foraminal stenosis or disc herniation, while dermatomes and myotomes map back to specific spinal segments. The relationship of spinal nerves to the vertebral levels also underpins neuraxial procedures, including lumbar puncture below L2 in adults and epidural catheter placement. Use this artwork for teaching neuroanatomy and regional anatomy in medical, nursing, and physiotherapy curricula when you need a clean overview of the CNS with originating peripheral nerves in posterior orientation. It also suits neurology and spine surgery texts, patient education on sciatica and cervical radiculopathy, and slide decks on dermatomes, nerve root compression, and spinal cord level localization. Anatomical accuracy verified by SciePro's Medical Advisory Board.