Section through the temporal bone (temporal bone), front view
1 = squama (squama) 2 = Spina suprameatalis 3 = external auditory canal (external acoustic meatus) 4 = tympanic part of Schäfenbeines 5 = mastoid (mastoid process) 6 = Fenestra vestibuli [ovalis] 7 = promontory 8 = Fenestra cochleae [Rotunda] 9 = eminentia pyramidalis 10 = opening for the chorda tympani (Apertura tympanic canaliculi chordae tympani) 11 = sulcus tympanic (bony groove for tympanic membrane) 12 = mastoid antrum 13 = facial nerve canal 14 = cochlearSource: Welleschik