Cranial Nerves

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Cranial Nerves
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IIIrd Nerve3Oculomotor
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Edinger Westphal nucleus (constricts the pupil)
Oculomotor nucleus (motoneurons for eye muscles)
Oculomotor nerve (to eye muscles pupil muscles)
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(from oculomotor)
(from Edinger-Westphal)
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IVth Nerve4Trochlear
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IV Nerve4Trochlear
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Trochlear nerve (to eye muscles)
Trochlear nucleus (motoneurons for eye muscles)
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(from trochlear)
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Vth Nerve5Trigeminal
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Trigeminal nerve (afferent touch, muscle
spindle/joint, pain temperature from
head efferent chewing muscles)
Motor trigeminal nucleus (motoneurons for jaw
muscles)
Main sensory trigeminal nucleus (touch,
conscious spindle joint from head)
Motor trigeminal nucleus
Main sensory trigeminal nucleus
Trigeminal nerve
Spinal trigeminal nucleus
Spinal trigeminal nucleus (pain temperature
from head)
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Motor Trigeminal Nucleus (right)
Spinal Trigeminal Nucleus (right)
Main sensory trigeminal nucleus (right)
Mesencephalic trigeminal nucleus (left)
Mesencephalic trigeminal tract (left)
Trigeminal Nerve (right)
Spinal trigeminal nucleus (left)
Main sensory trigeminal nucleus (left)
Spinal trigeminal nerve (left) (1 axons on way
to terminate in spinal trigeminal nucleus)
Trigeminal Nerve (left)
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(from motor trigeminal nuc)
(to main sensory spinal trigeminal nucs)
ALSO, UNCON PROP FROM JAW MUSCLES (to
mesencephalic trigeminal nuc)
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ophthalmic
Trigeminal ganglion
maxillary
mandibular
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Vth nerve somatosensory component (from face
skin)
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VIth Nerve6Abducens
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IV Nerve4Trochlear
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Abducens nucleus
Abducens nerve
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(from abducens)
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VIIth Nerve7Facial
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Genu of the Facial nerve
Abducens nucleus
Facial nucleus
Facial nerve
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Solitary nucleus (outside)
Abducens nucleus
Superior salivatory nucleus

• Facial intermediate nerve
• part of facial nerve carrying
• Motor
• motor output from the
• superior salivatory nucleus
• to some salivary glands (GVE)
• Sensory
• 1) taste information from
• the anterior 2/3 of the tongue to
• solitary nucleus via the solitary
• tract (SVA)
• 2) touch information from a
• small patch of skin on the ear and
• behind the ear to spinal trigeminal
• nucleus (GSA)

Spinal trigeminal nucleus
Solitary tract (inside)
Facial intermediate nerve
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(from facial nuc)
MOTOR
(from sup salivatory nuc)
(to spinal trigeminal nuc)
SENSORY
(to rostral solitary n)
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VIIIth Nerve8Vestibular-Cochlear

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(from inner ear to vestib cochlear nucs)
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(from inner ear to vestib cochlear nucs)
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(from inner ear to vestib cochlear nucs)
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(from inner ear to vestib cochlear nucs)
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IXth NerveGlossopharyngeal
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(No Transcript)
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MOTOR
(from ambiguus nuc)
(from inf salivatory nuc)
(to caudal solitary nuc)
SENSORY
(to spinal trigeminal nuc)
(to rostral solitary nuc)
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Xth NerveVagus
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(No Transcript)
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(from ambiguus nuc)
MOTOR
(from dorsal motor nucleus of Vagus)
(to caudal solitary nuc)
SENSORY
(to spinal trigeminal nuc)
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(from ambiguus nuc)
MOTOR
(from dorsal motor nucleus of Vagus)
(to caudal solitary nuc)
SENSORY
(to spinal trigeminal nuc)
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(No Transcript)
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(from ambiguus nuc)
MOTOR
(from dorsal motor nucleus of Vagus)
(to caudal solitary nuc)
SENSORY
(to spinal trigeminal nuc)
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(No Transcript)
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XIth NerveSpinal Accessory
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(No Transcript)
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XIIth NerveHypoglossal
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Cranial NerveSummary
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The End