What is the primary function of the skeletal system?

The primary function of the skeletal system is to provide support for the entire body. The skeletal system is composed of bones and cartilage that create a framework, giving shape and structure to the body. It also plays critical roles in protecting vital organs, facilitating movement by serving as points of attachment for muscles, and storing minerals such as calcium. Additionally, the skeletal system houses bone marrow, which is essential for producing blood cells.

While transporting nutrients throughout the body is important, this function is primarily carried out by the circulatory system rather than the skeletal system. Transmitting signals through the nervous system is the role of the nervous system, not the skeletal system. Filtering out blood impurities is a function of the kidneys, part of the urinary system, thus reinforcing that the skeletal system’s main role is indeed to provide structural support.