Is the spine part of the axial or appendicular region of the body?

The spine is classified as part of the axial region of the body because it forms the central support structure for the body, along with the skull and rib cage. The axial skeleton includes the vertebral column (spine), which provides protection for the spinal cord, supports the head, and serves as an anchor point for the ribs.

The axial region is primarily concerned with the body's central axis and is responsible for maintaining posture and establishing the body's structure. In contrast, the appendicular region consists of the limbs and their attachments to the body (the shoulder girdle and pelvic girdle). Given this distinction, the spine's fundamental role in supporting the body's structure and protecting vital organs places it firmly in the axial region. Understanding this classification helps clarify the organization of the human skeletal system and the functional roles different parts play.