Oh, Them Bones: Besides allowing you to stand upright, your bones manufacture blood cells and store minerals.The longest and strongest bone in your body is the femur, or thighbone. The strongest bone in your face is the mandible, or jaw bone. The smallest bones are in your ear the malleus, incus, and stapes (also known as the hammer, anvil, and stirrup, respectively.) Babies are born with 300 bones. But by adulthood, we have an average of only 206 because some of the bones fuse together as we grow. More than half the bones in your body are found in your hands and feet each of your hands has 27 separate bones, 26 in each foot It normally takes between six and eight weeks for a broken bone to heal.