Which part of the skeletal system does the sternum belong to?

The sternum, commonly known as the breastbone, is a key component of the axial division of the skeletal system. The axial skeleton primarily serves as the central framework of the body, providing support and protection for vital organs. This division includes the skull, vertebral column, and rib cage, all of which work together to protect the brain, spinal cord, and thoracic organs.

The sternum specifically plays a crucial role in the rib cage, anchoring the ribs and contributing to the protection of the heart and lungs. By being part of the axial skeleton, the sternum helps maintain the body's posture and supports the skull and upper body. Understanding how the sternum fits into the broader context of the skeletal system is important for recognizing its function in overall body mechanics and protection of critical organs.