Twelve human stapes from temporal bones fixed by formalin were extracted. Different
dimensions were measured by an electronic microscope with an accuracy of μm. These
dimensions were as follows:(1) maximum diameter of stapes head parallel to the axis of
footplate, 1088 μm (range, 857–1277 μm);(2) distance of main nutritional foramen to head
surface, 398 μm (range, 250–833 μm);(3) stapes head to shoulders, 757 μm (range, 571–
1000 μm), head to foramen, 1047 μm (range, 785–1500 μm), and head to lateral surface of …