Glossopharyngeal nerve [IX]Special sensory – taste (posterior 1/3 of tongue)Somatic sensory – posterior 1/3 of tongue, oropharynx,palatine tonsil, middle ear, pharyngotympanic tube, andmastoid air cellsBranchial motor –  stylopharyngeusVisceral motor – (parasympathetic) – secretomotor to theparotid glandVisceral sensory – from carotid body and sinusFacial nerve [VII] Branchial motor – all muscles of facial expression, andstapedius, stylohyoid, and posterior belly of digastricEfferent (motor) fibersV3V3V2V1Afferent (sensory) fibersFacial nerve [VII] (intermediate nerve)Special sensory – taste (anterior 2/3 of tongue)Somatic sensory – part of external acoustic meatus anddeeper parts of auricleVisceral motor (parasympathetic) – secretomotor to allsalivary glands except for parotid gland; all mucous glandsassociated with the oral and nasal cavities; lacrimal glandVestibulocochlear nerve [VIII]Special sensory – hearing and balanceOlfactory nerve [I]Special sensory – smellOptic nerve [II]Special sensory – visionTrigeminal nerve [V] sensory rootSomatic sensory – eyes, orbital contents, face, sinuses, teeth, nasal cavities, oral cavity, anterior 2/3 of tongue, nasopharynx, dura, anterior part of external ear,and part of external acoustic meatusTrigeminal nerve [V] motor rootBranchial motor – the four muscles of mastication(medial pterygoid, lateral pterygoid, masseter, temporalis)and mylohyoid, anterior belly of digastric, tensor tympani,and tensor veli palatiniOculomotor nerve [III]Somatic motor – five extra-ocular muscles (superior rectus, medial rectus,inferior oblique, inferior rectus, and levator palpebrae superioris)Visceral motor – ciliary muscles and sphincter pupillae musclesTrochlear nerve [IV]Somatic motor – one extra-ocularmuscle (superior oblique)Abducent nerve [VI]Somatic motor – one extra-ocularmuscle (lateral rectus)Hypoglossal nerve [XII]Somatic motor – all muscles of thetongue except palatoglossusAccessory nerve [XI]Branchial motor – sternocleidomastoidand trapeziusVagus nerve [X]Somatic sensory – larynx, laryngopharynx, deeper parts ofauricle, and part of external acoustic meatusSpecial sensory – taste from epiglottis and pharynxBranchial motor –  all muscles of pharynx except for stylopharyngeus; all muscles of the soft palate except for tensor veli palatini, all intrinsic muscles of larynxVisceral motor – (parasympathetic) – thoracic viscera andabdominal viscera to end of midgutVisceral sensory – thoracic viscera and abdominal viscerato end of midgut, chemoand baroreceptors(and in some cases carotid body)
In the clinic
Facelift surgery (rhytidectomy) aims to lift up and pull back the skin in the lower half of the face and neck to make the face more taught. Careful placement of the incisions is important to ensure there is no skin or facial distortion and to avoid hair loss. The commonest incisions are placed in the temporal region on each side, extending to the helices of the ears, then tracking behind the tragus, around the earlobes, and then to the occiput.