🦴 Longest Bone: The Femur
3rd Grade 🏆 World Records
The femur, or thigh bone, is the longest and strongest bone in your body.
From hip to knee
The femur connects your hip to your knee. In an adult it is about 18 inches long — about a quarter of your height.
How many bones?
Adults have 206 bones. Babies are born with about 300, but some grow together as they get older. The smallest bone, the stapes, is in your ear.
Quick quiz
What is the longest bone?
How many bones does an adult have?
Where is the smallest bone?