Facial nerve (7th cranial nerve) Flashcards
what is the function of the facial nerve?
movement of facial expression
the route of the facial nerve
Exits the cranium through the …
Internal Auditory Meatus
Exits the cranium through the Internal Auditory Meatus which leads to the …
Facial Canal
The Facial Nerve exits the base of the skull at the
Stylomastoid Foramen
The Facial Nerve exits the skull from the stylomastoid foramen and provides the nerve supply to the….
Posterior belly of Digastric
Stylohyoid Muscle
The facial nerve then enters the…
parotid gland
Parotid gland, forms a plexus, and divides into
5 terminal branches
what do these 5 branches supply to the muscles of facial expression?
motor fibres
what are the 5 facial nerve branches
Temporal
Zygomatic
Buccal
Mandibular
Cervical
where does the temporal branch leave
Parotid gland
what does the temporal branch supply
The Temporal Region
The upper part of the Orbicularis Oculi
Muscles anterior to the ear.
small branch of zygomatic branch supplies
Inferior part of Orbicularis Oculi.
large branch of zygomatic branch supplies
Muscles of nose
andbetween the eye and the mouth.
where is the buccal branch
Runs towards the angle of the mouth and nose
what does the buccal branch supply
Buccinator
OrbicularisOris
what does the mandibular branch supply
The lower lipmuscles
what does the cervical supply
The Platysma
other branches of facial nerve - Chorda Tympani what is it responsible for
taste sensation to the anterior 2/3 of the tongue
other nerve-
Glossopharyngeal 9th cranial nerve what kind of nerve is this
mixed nerve
what is the function of the glossopharyngeal
taste sensation from posterior 1/3 of tongue
other nerve -
hypoglossal 12 th cranial nerve what kind of nerve is this
motor nerve
what does the hypoglossal nerve supply
supplies the tounge muscles
other nerve -
accessory nerve 11th cranial nerve what kind of nerve is this?
motor nerve
what does the accessory nerve supply
Palatoglossus (muscle of the soft palate & extrinisic muscle of the tongue)
