Facial nerve exits
The facial nerve then exits the facial canal (and the cranium) via the stylomastoid foramen. This is an exit located just posterior to the styloid.
The facial nerve is the seventh cranial nerve, or simply CN VII. It emerges from the pons of the Upon exiting the internal auditory meatus, the nerve then runs a tortuous course through the facial canal, which is divided into the labyrinthine.
Description:There is also a small amount of cutaneous sensation carried by the nervus intermedius from the skin in and around the auricle outer ear. The cell bodies for muscular efferent nerves are found in the facial motor nucleus whereas the cell bodies for the parasympathetic efferent nerves are found in the superior salivatory nucleus. These sensory V-3 and taste VII fibers travel together as the lingual nerve briefly before the chorda tympani leaves the lingual nerve to enter the tympanic cavity middle ear via the petrotympanic fissure. It also innervates the posterior belly of the digastric muscle, the stylohyoid muscle, and the stapedius muscle of the middle ear. The chorda tympani passes through the petrotympanic fissure before entering the infratemporal fossae.