Every bone in your body is completely rebuilt about every 8–10 years through a process called remodeling!
Human Bones - Facts for Kids
Did you know?
Search name of person, animal, place, thing, etc.
Share
Facts About Human Bones For Kids
How tall you grow mostly comes down to how long your bones get — but that length depends both on your genes and how much good food, sleep, and activity you get while you’re growing!
Fun Science Facts
If you laid out every bone in your body from head to toe, they’d stretch only about 7–8 feet — like lining up four tall kids standing one after the other!
Scientists can tell how old someone was and what they ate by studying their bones!
When you jump rope, your bones can feel 2 to 3 times your body weight with each landing!
Your bones make up about 14% of your body weight — that’s about the same as 80 bananas stacked together. Think of your skeleton as carrying a whole banana tower on its back! 🍌🦴
The collarbone (clavicle) is one of the most commonly broken bones, and it’s the only long bone that lies flat across your body from side to side!
The wrist bone (called the distal radius) is the most commonly broken bone — especially when people try to catch themselves during a fall!
Your bones stop growing in length during your late teens, but they continue to increase in density until your late 20s!
The hyoid bone in your throat is the only bone in your body not connected to any other bone!
The bones in your skull are connected by special joints called sutures that look like puzzle pieces under a microscope!
Special Features
Your bones produce a special hormone that helps control blood sugar and energy levels!
The inside of your bones looks like a honeycomb under a microscope!
Your bones contain special stem cells that can develop into different types of blood cells!
Your three smallest bones — called the malleus (hammer), incus (anvil), and stapes (stirrup) — are all tucked inside your middle ear, and they’re so tiny that together they could easily fit on a penny with room to spare!
Your bones have their own network of blood vessels called the Haversian system!
Connection to Other Systems
Your bones work with your muscles to create a system of levers that allows you to move in hundreds of different ways!
Your bones protect your internal organs like a suit of armor — your skull protects your brain, your ribcage protects your heart and lungs, and your pelvis protects your digestive organs!
Your bones work with your immune system to fight off infections and diseases!
The bone marrow in your bones works with your heart to create and circulate blood throughout your body!
Your bones work with your endocrine system to produce hormones that help regulate your body!
Your bones partner with your digestive system to store and release important minerals when needed!
