Lower back pain can be caused by a variety of problems with any parts of the complex, interconnected network of spinal muscles, nerves, bones, discs or tendons in the lumbar spine. Typical sources of low back pain include:
Click the link below to view the video:
http://www.spine-health.com/video/lumbar-spine-anatomy-video
References:
www.spine-health.com www.arthritishealth.com www.mayoclinic.org