The muscles of the lower back help stabilize, rotate, flex, and extend the spinal column, which is a bony tower of 24 vertebrae that gives the body structure and houses the spinal cord. The spinal ...

The lumbar vertebrae are the largest movable bones of the backbone. Their large size and bone strength is necessary because these vertebrae support more weight than the upper two segments of the ...

The spine, or backbone, is a long column of bones that runs down the center of a person’s back. It is essential for many functions, such as movement, support, and protecting the spinal cord. A ...