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Pathway:

The fibers of the Abducens nerve pass anteriorly through the pons
...

It passes forward through the cavernous sinus, lying below and lateral to the
internal carotid artery
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Functions:

              The abducens nerve functions to innervate the ipsilateral lateral rectus muscle and partially
innervate the contralateral medial rectus muscle
...

Examination:

               Moves the eyeball according to object movement
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Physiotherapy
2
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The Main Motor Nucleus
2
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The Sensory Nucleus 

Main Motor Nucleus:

It lies deep in the reticular formation of the pons
It recieves corticonuclear fibers from both cerebral hemispheres for upper part
of face
...


Parasympathetic Nucleus:

              It lies posterolateral to the main motor nucleus
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Salivary Nucleus: ( recieves fibers from hypothalamus concerned with taste)
ii
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Sensory Nucleus:

It lies close to the main motor nucleus
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It recieves taste sensation from anterior 2/3 of the tongue
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Then it goes to the thalamus and then to the internal capsule of the cerebral
cortex
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Then pass around the nucleus in the floor of 4th ventricle
Finally,pass anteriorly to emerge from the brainstem
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They pass laterally with the vestibulocochlear nerve through internal acoustic
meatus in the petrous part of temporal bone
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On reaching, the tympanic cavity of inner ear, it passes through stylomastoid
foramen
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Nerve to stapedius:

              (supply stapedius muscle)
ii
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Greater Superficial Petrous Nerve:

At the level of Mastoid foramen:

i
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Digastric Nerve:

             (Supply Digastric muscle)
iii
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Temporal:

           (supply Orbicularis occuli, Frontalis, Corrugator)
B
...
Buccal:

         (supply Buccinator)
D
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Cervical:

         (Supply Platysma)

8- Vestibulocochlear Nerve

α
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Cochlear means hearing

Component:  Sensory Nerve


"Vestibular Nerve"

Pathway:

The vestibular nerve conduct impulses from utricle and saccule
...
(movement of
head)
It enters the vestibular ganglions at internal acoustic meatus
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Then nerve enter into the cerebellum through inferior cerebellar peduncle
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=One fiber is ascend into cerebral cortex
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Functions:

          The vestibular nerve is primarily responsible for maintaining body balance
and eye movements
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Examination Test:

1
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Caloric test
3

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