How far up and down does the backbone go?

The backbone, or vertebral column, extends from the base of the skull to the pelvis, typically comprising 33 vertebrae in adults. It runs approximately 24 to 30 inches (60 to 75 cm) in length, depending on the individual's height and anatomy. It supports the body's structure, encases the spinal cord, and allows for flexibility and movement. Additionally, it has natural curves that help distribute weight and absorb shock.