2. You'll keep growing as long as the growth plates (at the end of long bones in your arms and legs) stay open. For most boys, the plates close in their late teens, and for girls, it's usually two years after starting menstruating.
3. When you break bones, the damaged surfaces rebond together to form a new bone, many times even stronger than the original.
4. Your skeletal system plays many roles for your body, including protecting your brain, heart, and lungs, manufacturing red and white blood cells, and storing minerals.
5. You have the most bones in your hands, fingers, and wrists, with an astounding 54 separate bones!
6. The human foot, in comparison, “only” contains 26 bones.
7. In fact, half of the total number of bones in your body are found in the hands and feet.
8. Your femur, or thigh bone, is the longest (and strongest) bone in your body and the stirrup-shaped stapes in your middle ear is the shortest, measuring only 0.11 inches.
9. Bone may seem like inanimate material, but it’s actually living tissue, replenishing itself every seven years.
10. Most people don’t realize that their teeth are part of their skeleton, too, and contain calcium and minerals like your other bones. However, teeth don’t contain collagen like other bones, which is why they lack flexibility and strength.
11. Is the “funny bone” a real thing? It’s actually not a bone at all but the ulnar nerve that runs inside your elbow, triggering tingling.
12. You have lots of joints in your body where bones come together, and some of them – like knee and shoulder joints – are in constant motion. But a few joints, like the joints in your cranium, don’t move at all.
13. In fact, joints start to creak as we age because the cartilage that helps cushion our joints starts to wear out, causing arthritis.
14. The most common bone breaks occur in arms, with about half of all adults having suffered a broken arm at one point. For children, collarbones are the most commonly broken bones.
15. The hyoid, a V-shaped bone located at the base of the tongue, is the only bone in the human body not connected to another.
16. Bones make up 14% of your total body weight!
17. Your face has 14 bones in it.
18. Giraffes have the exact same number of bones in their necks as humans!
19. 1 in 2 women and 1 in 4 men will break a bone because of osteoporosis.
20. Cracking your knuckles does not hurt your bones or cause arthritis –it’s just the sound of gas bubbles bursting that you hear.