Anatomy of Lower Back

Lumbar Spinal Nerves

The lumbar spinal nerve roots exit openings formed between adjacent lumbar vertebrae termed the intervertebral foramina or IVF. The weakest aspect of the spinal disc is unfortunately in close proximity to the IVF. Thus, disc injuries commonly result in discal materials compressing, stretching or irritating the nerve roots exiting the IVF's.

Because the nerve roots exiting the lumbar spine innervate structures in the lower extremities, any compression, stretching or other irritation will result in numbness, tingling, pain or weakness in the leg(s) and/or feet. This may result from vertebral malpositions, disc herniations, arthritic changes to the vertebrae and facet joints, or even abnormalities within the muscles (piriformis syndrome).

http://www.drstudholme.com/index.php?p=149880#a2

http://www.depsyl.com/

http://back2basicnutrition.com/

http://bionutritionalresearch.olhblogspace.com/