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What are the primary functions of bones?

Bones have three main jobs. First, bones protect other parts of the body. Bones are tough and strong and help to keep other parts of the body safe, such as the brain, heart, and lungs. 

Second, bones help with movement. Muscles attach to bones so people can move arms, legs, fingers, toes, and all the other parts of the body. 

Third, in the center of bones is the bone marrow. Bone marrow is a factory that makes blood cells.

Dr. Mehmet Oz, MD
Cardiologist (Heart Specialist)

On the surface, bones seem easy: They're white and hard, and they're great for fetching and Halloween parties. But in reality, bones are more misunderstood than Bob Dylan's lyrics. The primary functions of bone are:

  • to act as a suit of armor for our other vital organs;
  • to store minerals like calcium and magnesium;
  • to act as a series of lever arms needed for movement;
  • to act as a factory for the production of blood and similar elements.
YOU: The Owner's Manual, Updated and Expanded Edition: An Insider's Guide to the Body that Will Make You Healthier and Younger

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.