The
lumbar vertebrae are, in human anatomy, the five
vertebrae between the
rib cage and the
pelvis. They are the largest segments of the
vertebral column and are characterized by the absence of the
foramen transversarium within the transverse process (as it is only found in the cervical region), and by the absence of facets on the sides of the body. They are designated L1 to L5, starting at the top. The lumbar vertebrae help support the weight of the body, and permit movement.