Your back is made up of an intricate system of bones, nerves, and tissues. The three main ones you want to learn about are the vertebrae and discs, the muscles and the nerves and myelin. All three areas can be sources of pain.
Your spine is comprised of small-stacked bones (the vertebrae) that form a column separated by discs. Think of your spine as a column of doughnuts separated by a nice wedge of havarti cheese: The vertebrae are the doughnut portion and inside the hole travels the spine; the harvarti is the disc. If the havarti is pushed out of place, you have a bulging disc.
Surrounding your spine, there's a large and complex set of muscles that have the job of an anatomical administrative assistant; they're all about providing support. These muscles are broken into three broad categories: Extensors, which are attached to the back of the spine and give you the strength to stand; flexors, which are in the front of the spine and help you bend forward; and obliques, which are attached to the sides and help you win twist contests. Also important in this complex are the abdominal muscles - actually the most important front muscles of the lower back.
Find out more about this book:You: Being Beautiful - The Owner's Manual to Inner and Outer Beauty