Hand and wrist health
5 Fun Facts About the Hand and Arm Bones
By handsurgerypro
- The hands (including the wrists) are the body part with the most bones – Each hand has 27 bones, and together they have 54 bones. That represents over 25% of the total amount of bones in the human body!
- Arms are usually the most commonly broken bones among adults. If broken, most bones will re-grow and repair themselves, with the help of a cast to keep them straight. It is of outmost importance to visit a trained hand specialist to aid with the proper treatment of broken hand/arm bones.
- The bones of the entire body are made up of calcium, phosphorus, sodium, collagen, and various minerals.
- The majority of our bones have a strong outer layer, a spongy middle part full of air, and an inside made up of a soft tissue substance called bone marrow. The bone marrow produces red blood cells and lymphocytes, an essential part of our immune system.
- The movement of the metacarpal bones by tiny muscles in the hand makes the palm stretch, compress, or fold as needed.
