The document summarizes the spinal and pelvic bones. It describes the 33 vertebrae that make up the vertebral column and their five divisions. Each vertebra has a body, vertebral arch, and processes for muscle attachment. The vertebral column encloses the spinal cord, forms the body's central axis, and carries the body's weight above the pelvis. The pelvis is formed from three bones on each side - the ilium, ischium, and pubis - that meet at the pubic symphysis in front and sacroiliac joints behind. The male and female pelvis differ in structure.