Prominence of the facial canal
Encyclopedia
The prominence of the facial canal (prominence of aqueduct of Fallopius) indicates the position of the bony canal in which the facial nerve
is contained; this canal traverses the labyrinthic wall of the tympanic cavity
above the fenestra vestibuli, and behind that opening curves nearly vertically downward along the mastoid wall.
Facial nerve
The facial nerve is the seventh of twelve paired cranial nerves. It emerges from the brainstem between the pons and the medulla, and controls the muscles of facial expression, and functions in the conveyance of taste sensations from the anterior two-thirds of the tongue and oral cavity...
is contained; this canal traverses the labyrinthic wall of the tympanic cavity
Tympanic cavity
The tympanic cavity is a small cavity surrounding the bones of the middle ear.It is formed from the tubotympanic recess, an expansion of the first pharyngeal pouch....
above the fenestra vestibuli, and behind that opening curves nearly vertically downward along the mastoid wall.