The spine is a long, hollow tube that has multiple openings to allow for the passage of the spinal cord and nerve roots. Over time, bone, ligaments, and discs can constrict the canal.
A back sprain or strain can occur when you lift too much weight, play a strenuous sport, or even bend or twist improperly during the course of a regular day.
The spine is made up of a series of connected bones called "vertebrae." In about 5% of the adult population, there is a developmental crack in one of the vertebrae, usually at the point at which the lower (lumbar) part of the spine joins the tailbone (sacrum).
Spine tumors may arise from any of the structures of the spine or the spinal column. They may arise in the cervical (neck), thoracic (mid-back) or lumbosacral (low back) regions.