Quantcast Table 1-1. 12 pairs of cranial nerves and their functions. - The Central Nervous System

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Smell
I
Olfactory.
Sight
II
Optic.
NOTE: Neither the olfactory nor the optic nerves are really cranial nerves since these
nerves are composed of fibers belonging to the central nervous system.
Movement of the eyeball, lens, and
III
Oculomotor
pupillary sphincter
Superior oblique muscle of the eye
IV
Trochlear
Affects ophthalmic, maxillary, and mandible areas;
V
Trigeminal
controls muscles of mastication
Moves the eye outward
VI
Abducens
Controls muscles of the face, scalp, ears; controls
VII
Facial
salivary glands; receives taste sensation from the
anterior 2/3 of the tongue
Hearing and equilibrium
VIII Acoustic
Sensations from the pharynx and the posterior 1/3 of the
IX
Glossopharyngeal
tongue
Sensory and motor to thoracic and abdominal viscera
X
Vagus
Permits movement of head and shoulders
XI
Accessory
Controls muscles of tongue
XII
Hypoglossal
Table 1-1. 12 pairs of cranial nerves and their functions.
MD0572
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