The thinnest, most fragile bone is the lacrimal bone which sits either side of the nose to protect the eye.
Babies are born without kneecaps. These form at around the age of two.
Bones need calcium to stay strong and healthy. Vitamin D helps improve the absorption of calcium when taken as a supplement.
The pelvic bone of women is a different shape to that of men to allow childbirth.
Our bones stop growing in our mid 20s but continue to add density until around the age of 30. After that, gradual density loss sets in.
The ribs move the most, because of the need to breath. They move around 5 million times per year.
A human adult has 206 bones but is born with 300. As a baby grows, its bones fuse together to decrease the number.
The hyoid bone sits at the back of your tongue and is the only bone not connected to other bones through joints.
The smallest bone in the body is called the stapes and sits in your inner ear. This tiny bone measures about 3 x 2.5 mm.
Almost half of all broken bones among adults are in the arm.