The nerve plexuses are proximal segments of peripheral nerves emerging from the foramina of the spine with interchanging and intertwining nerves from different spinal levels that then form individual nerves more distally. There are two major nerve plexuses: the brachial and lumbosacral plexus.

Where is the lumbar plexus nerve located?

Location. The lumbar plexus contains the ventral rami (front portions of spinal nerves) that emerge from between the five lumbar vertebrae (L1-L5). In addition, it’s joined by a portion of the lowest thoracic nerve, which emerges from the T12 vertebra just above the lumbar region.

What happens if the cervical plexus is damaged?

Damage to the cervical plexus can cause sensory disturbances to the posterior head, neck, submandibular region, and the superior back, in a cape-like distribution.