What is the skeletal system?

• A. Framework that supports the body
• B. System that allows movement
• C. System that breaks down food
• D. System that controls body functions

Answer: (A)

The main idea is that the skeletal system serves as the framework that supports the body. It gives us shape, helps us stand upright, and protects vital organs like the brain and the heart and lungs. Bones also provide attachment points for muscles, acting as rigid levers that, with the muscles, enable movement. In addition, the skeleton stores minerals such as calcium and phosphorus and houses bone marrow that makes blood cells. This system isn’t responsible for digesting food—that’s the digestive system—nor does it control body functions by itself, which involves the nervous and endocrine systems. So, the skeletal system is best described as the framework that supports the body.