What is the primary function of the skeletal system?

The primary function of the skeletal system is to provide structural support and protection for the body's organs and tissues. The skeletal system serves as the framework of the body, maintaining its shape and supporting the weight of the body in a coordinated manner. It protects vital organs; for instance, the ribcage guards the heart and lungs, while the skull encases the brain.

Additionally, the skeletal system plays a crucial role in the attachment of muscles, enabling movement through the leverage of joints. It also contributes to the production of blood cells within the bone marrow and stores minerals such as calcium and phosphorus, which are essential for various bodily functions. This foundational role makes the skeletal system indispensable for overall health and functionality.

The other options refer to functions that are primarily managed by different systems in the body, such as the endocrine system for hormonal regulation and the circulatory system for blood circulation. Digestion is primarily a function of the gastrointestinal system. Therefore, structural support and protection remains the key role of the skeletal system.