part of part_of part of part_of conduit for facial nerve temporal bone neural crest-derived structure foramen of skull facial nerve canal A Z-shaped canal running through the temporal bone from the internal acoustic meatus to the stylomastoid foramen. It is located within the middle ear region, according to its shape it is divided into three main segments: the labyrinthine, the tympanic, and the mastoidal segment . FMA:54952 UBERON:0018413 canalis nervi facialis facial canal fallopian canal uberon