What does the appendicular skeleton primarily consist of?

The appendicular skeleton primarily consists of the limbs and girdles. This includes the arms and legs, as well as the pelvic (hip) girdle and the shoulder girdle (scapula and clavicle). The main role of the appendicular skeleton is to facilitate movement and to support the body during locomotion and various physical activities.

The distinction between the appendicular skeleton and other parts of the skeleton is significant. The axial skeleton, for example, includes the skull, vertebral column (spine), ribs, and sternum, which primarily serve to protect the vital organs and provide structural support. The bones of the face and vertebrae, while also important, are part of the axial skeleton and do not contribute to the appendicular skeleton's role in movement and mobility. Understanding the specific components of the skeleton is crucial for anyone studying health and fitness, as it lays the foundation for comprehending how the body moves and functions during physical activity.