The term SPINAL COLUMN is composed of two words, the first being TITLE (5 letters) and the second being BACKBONE (8 letters). The spinal column is a major component of the human body, consisting of 33 vertebrae that are stacked on top of each other. It is the central structure of the skeletal system and provides support for the head, neck, and torso. It also houses the spinal cord, which is responsible for transmitting signals between the brain and the rest of the body.