Which function relates to mineral storage in bones?

• A. Protects internal organs
• B. Enables movement at joints
• C. Provides mineral reservoir
• D. Produces red blood cells

Answer: (C)

Bones store minerals as a key function. They act as a mineral reservoir for calcium and phosphate, releasing or depositing these minerals as needed to maintain blood levels and support body processes like nerve signaling and muscle contraction. This storage and exchange with the bloodstream helps keep mineral balance in the body.

Other roles bones play include protecting internal organs (such as the skull safeguarding the brain) and providing structure for movement at joints, while red blood cell production occurs in the bone marrow. These are important, but they describe different functions than mineral storage.