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Cranial Nerves. IIIrd Nerve 3 Oculomotor. Edinger Westphal nucleus (constricts the pupil). Oculomotor nucleus (motoneurons for eye muscles). Oculomotor nerve (to eye muscles & pupil muscles). (from oculomotor). (from Edinger-Westphal). IVth Nerve 4 Trochlear. IV Nerve 4 Trochlear.
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Edinger Westphal nucleus (constricts the pupil) Oculomotor nucleus (motoneurons for eye muscles) Oculomotor nerve (to eye muscles & pupil muscles)
(from oculomotor) (from Edinger-Westphal)
Trochlear nerve (to eye muscles) Trochlear nucleus (motoneurons for eye muscles)
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)
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)
(from motor trigeminal nuc) (to main sensory & spinal trigeminal nucs) ALSO, UNCON PROP FROM JAW MUSCLES (to mesencephalic trigeminal nuc)
ophthalmic Trigeminal ganglion maxillary mandibular
Abducens nucleus Abducens nerve
Genu of the Facial nerve Abducens nucleus Facial nucleus Facial nerve
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
(from facial nuc) MOTOR (from sup salivatory nuc) (to spinal trigeminal nuc) SENSORY (to rostral solitary n)
MOTOR (from ambiguus nuc) (from inf salivatory nuc) (to caudal solitary nuc) SENSORY (to spinal trigeminal nuc) (to rostral solitary nuc)
MOTOR (from ambiguus nuc) (from dorsal motor nucleus of Vagus) (to caudal solitary nuc) SENSORY (to spinal trigeminal nuc)
MOTOR (from ambiguus nuc) (from dorsal motor nucleus of Vagus) (to caudal solitary nuc) SENSORY (to spinal trigeminal nuc)
MOTOR (from ambiguus nuc) (from dorsal motor nucleus of Vagus) (to caudal solitary nuc) SENSORY (to spinal trigeminal nuc)
(from spinal accessory nucleus in cervical cord)