Fallopian canal

Last revised by Dr Daniel J Bell on 18 Jun 2019

The Fallopian canal or facial nerve canal refers to a bony canal through which the facial nerve traverses the petrous temporal bone, from the internal acoustic meatus to the stylomastoid foramen. There are three segments of the canal, corresponding to the segments of the facial nerve they contain:

  1. labyrinthine
  2. tympanic
  3. mastoid

Two genua (anterior genu and posterior genu) are also present.

It is, for those of you fond of anatomic trivia, the longest bony canal through which a nerve passes in the human body.

History and etymology

It is named after Gabriele Falloppio (also known by his Latin name Fallopius), Italian anatomist (1523-1562) after whom also Fallopian tube and Fallopian ligament are named 3.

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