Which part of the skeleton consists of the skull, spinal column, sternum, and ribs?

The axial skeleton is composed of the skull, spinal column, sternum, and ribs. This part of the skeleton serves as the central core structure of the body, providing support and protection for the brain, spinal cord, and vital thoracic organs. The skull houses and protects the brain, while the spinal column consists of vertebrae that encase the spinal cord, allowing for both protection and mobility. The sternum and ribs form the thoracic cage, which safeguards the heart and lungs.

In contrast, the appendicular skeleton includes the limbs and the girdles that connect them to the axial skeleton. The pelvic girdle refers specifically to the bones that form the base of the spine and support the lower limbs, while the shoulder girdle connects the arms to the axial skeleton. Understanding these distinctions is crucial for recognizing the functions and roles of various skeletal components within the human body.