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Cranial nerve origins & foramina
I (Olfactory: smell)
Olfactory Bulb
(Cribriform Plate)
II (Optic: vision)
Optic Canal
III (Oculomotor: eye lid & ball movement)
IV (Trochlear: moves eye down, superior oblique)
VI (Abducens: abducts eyes via lateral rectus m.)
V1 (Trigeminal: Opthalmic: cornea, lacrimal g., mucosa, skin)
Superior Orbital
Fissure
Midbrain
Foramen Rotundum
V2 (Trigeminal: Maxilary: upper oral cavity, skin)
Foramen Ovale
V3 (Trigeminal: Mandibular: chewing, lower
oral cavity)
Pons
Internal Acoustic Meatus
VII (Facial: taste, tears, saliva, facial expressions)
VIII (Vestibulocochlear aka auditory n.: hearing, equilibrium)
IX (Glossopharyngeal: taste, carotid blood pressure)
X (Vagus: taste, digestion, aortic bp, slows heart rate)
Jugular Foramen
Medulla
XI (Accessory: trapezius & sternocleidomastoid, swallowing)
Hypoglossal Canal
XII (Hypoglossal: tongue movements)
Foramen Magnum
Ventral view of brain
Chris Kennel| Fall 2011
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