What is the primary function of the skeletal system?

The primary function of the skeletal system is to provide a supporting framework and protect vital organs. The skeletal system is made up of bones and cartilage, which together form the body's structure and shape. This framework not only supports the weight of the body but also facilitates movement by providing attachment points for muscles. Additionally, bones protect critical organs; for example, the rib cage shields the heart and lungs, and the skull encases the brain.

While blood circulation, digestion, and sensory perception are vital functions of the body, they are not the primary roles of the skeletal system. The circulatory system is responsible for blood circulation, the digestive system handles digestion, and the nervous system enables sensory perception. The skeletal system mainly focuses on structural support and protection, making it foundational for overall bodily functionality.