What does the term 'skeletal system' refer to?

The term 'skeletal system' specifically refers to the framework of bones and cartilage that provides structure and support to the body. It is responsible for protecting vital organs, facilitating movement by serving as attachment points for muscles, storing minerals such as calcium, and producing blood cells within the bone marrow. Together, the individual bones form a complex network that is vital for both physical stability and overall health.

Muscle groups, while essential for movement, are not part of the skeletal system; they interact with it to enable motion. The nervous system is responsible for transmitting signals throughout the body and does not constitute the skeletal framework. The circulatory system is involved in the transport of blood and nutrients, operating independently of skeletal structure. Thus, the skeletal system is uniquely identified with the bone structure and its associated components.