- May 2, 2026The posterior cutaneous branches of the lumbar posterior rami supply the skin of the lower back from L1 to L5.…
- May 2, 2026The iliohypogastric nerve arises from the L1 nerve root (with a contribution from T12) as the most superior branch of…
- May 2, 2026The grey rami communicantes are unmyelinated postganglionic sympathetic fibres passing from the lumbar sympathetic ganglia back to the spinal nerves,…
- May 2, 2026The recurrent meningeal branches (sinuvertebral nerves) of the lumbar spine are mixed nerves formed by a somatic branch from the…
- May 2, 2026The lumbar sympathetic chain consists of four paired ganglia running along the anterolateral aspect of the lumbar vertebral bodies, medial…
- May 2, 2026The lumbar dorsal root ganglia (DRG) contain the cell bodies of primary sensory neurons supplying the lower limb and lumbosacral…
- May 2, 2026The lumbar dorsal rami arise from each lumbar spinal nerve after it exits the intervertebral foramen and divide into medial…
- May 2, 2026Each spinal nerve is formed by the union of a dorsal root (sensory, entering the cord's dorsal horn through the…
- May 2, 2026The sinuvertebral nerve (recurrent meningeal nerve, nerve of Luschka) is a small mixed nerve formed at each spinal level by…
- May 2, 2026The spinal cord is the cylindrical neural structure within the vertebral canal extending from the foramen magnum to the conus…