The main function of the facial nerve is motor control of all of the muscles of facial expression.
Facial Nerve (CN VII)
All these muscles are derivatives of the second pharyngeal arch. The dorsal subnucleus receives bilateral innervation and supplies the upper face; the lateral subnucleus contralateral innervation supplies the lower face. Articles Cases Courses Quiz. If you believe that this Physiopedia article is the primary source for the information you are refering to, you can use the button below to access a related citation statement. Thank you Your feedback has been sent. As the facial nerve and nervus intermedius pass through the anterior superior quadrant of the internal acoustic meatus it enters the Fallopian canalpassing anterolaterally between and superior to the cochlea anterior and vestibule posteriorand then bends posteriorly the anterior or first genu at the geniculate ganglion where the nervus intermedius joins the facial nerve and where fibres for taste synapse - see function below.