Biology
Ossicles: The Smallest Bones in the Human Body
Quick fact
The stapes—the innermost of the three ossicles—is the smallest bone in the human body, measuring about 3 millimeters, roughly the size of a grain of rice.
Why this is interesting
You've likely heard that the bones in your middle ear are the smallest in your body—but did you know they act as a lever system that can amplify sound pressure twentyfold?