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Cranial Nerves
Name, Function, & Exit
12
Anatomy
Professional
11/23/2009
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Term
Cranial Nerve #1
 Definition
  • Name: olfactory nerve
  • Function: olfaction
  • Exit: cribriform foramina
Term
Cranial Nerve #2
 Definition
  • Name: Optic nerve
  • Function: Vision
  • Exit: Optic canal
Term
Cranial Nerve #3
 Definition
  • Name: Oculomotor nerve
  • Function: Motor to ventral oblique m; dorsal,  ventral, medial rectus mm. of eye, levatorpalpebrae superioris m.
  • Exit: Orbital fissure
Term
Cranial Nerve #4
 Definition
  • Name: Trochlear nerve
  • Function: Motor to dorsal oblique m. of eye
  • Exit: Orbital fissure
Term
Cranial Nerve #5
 Definition
  • Name: Trigeminal nerve
  • Ophthalmic branch
    • Function: Sensory to & around eye
    • Exit: Orbital fissure
  • Maxillary branch
    • Function: Sensory to & around upper arcade & lip
    • Exit: Round foramen-rostral alar foramen
  • Mandibular branch
    • Function: Sensory to & around lower arcade, lip, & tongue; motor to mm. of mastication except cd half of digastricus m.
    • Exit: Oval foramen
Term
Cranial Nerve #6
 Definition
  • Name: Abducens nerve
  • Function: Motor to lateral rectus m. & retractor bulbi mm. of eye
  • Exit: Orbital fissure
Term
Cranial Nerve #7
 Definition
  • Name: Facial nerve
  • Function: Motor to most mm. of facial expression & cd half of digasticus m.; taste sensation from rostral 2/3 of tongue; parasymp. fibers to lacrimal gland, mandibular, & sublingual salivary glands
  • Exit: Stylomastoid foramen
Term
Cranial Nerve #8
 Definition
  • Name: Vestibulocochlear nerve
  • Function: Balance & hearing
  • Exit: Does not emerge
Term
Cranial Nerve #9
 Definition
  • Name: Glossopharyngeal nerve
  • Function: Taste sensation from cd 1/3 of tongue; parasymp. fibers to parotid & zygomatic salivary glands; sensory to pharynx & carotid sinus; motor to pharyngeal mm.
  • Exit: Tympano-occipital fissure
Term
Cranial Nerve #10
 Definition
  • Name: Vagus nerve
  • Function: Motor to smooth m. & glands of respiratory & digestive systems & motor to heart; sensory to respiratory & digestive systems; motor to mm. of pharynx & larynx
  • Exit: Tympano-occipital fissure
Term
Cranial Nerve #11
 Definition
  • Name: Accessory nerve
  • Function: Motor to trapezius m.
  • Exit: Tympano-occipital fissure
Term
Cranial Nerve #12
 Definition
  • Name: Hypoglossal nerve
  • Function: Motor to tongue
  • Exit: Hypoglossal canal
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