What does the skeletal system primarily protect?

The skeletal system primarily protects internal organs, which is a crucial function. The bones form a sturdy framework that encases and safeguards vital organs. For instance, the rib cage protects the heart and lungs, while the skull encases the brain, shielding it from injury. Additionally, the vertebral column encases the spinal cord, providing further protection to the central nervous system.

In contrast, while skin and muscles play roles in supporting and surrounding body structures, they are not the primary components that the skeletal system protects. Body fluids, such as blood and lymph, are contained within the circulatory and lymphatic systems, which operate independently of the skeletal system. Nervous tissue, while protected to an extent, is primarily safeguarded by the skull and vertebrae rather than being a direct focus of the skeletal system.