The smallest bone in your body is in your ear .
Where Is The Smallest Bones In The Body Located And Where Are The Majority Of The Bones Located?
The smallest bones in the human body are located in the middle ear and are called the malleus, the incus, and the stapes. I'm not sure how to answer the second part of your question, but I think the spine probably has the most bones per body "part," or maybe the wrists and hands.
The five purposes of our bones are what?