Axial skeleton — A/L Biology

A. Organization of Human Skeleton Definition: The human skeleton is divided into two main parts: the axial skeleton and the appendicular skeleton, which work together to provide support, protection, and movement. Explanation: The axial skeleton forms the central axis of the body and includes the skull, vertebral column, ribs, and sternum. It provides the main structural support and protects vital organs like the brain, spinal cord, and thoracic organs. The appendicular skeleton consists of the limbs and girdles that attach them to the axial skeleton, enabling movement and manipulation. These two systems are interconnected through joints and ligaments, creating a unified framework that maintains body shape and posture while allowing mobility. Think of it as: Think of the axial skeleton as the central pillar of a building (like the main support column) and the appendicular skeleton as the wings or extensions attached to it (like the building's wings or annexes).