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Oculomotor (III), Trochlear (IV) and Abducent (VI) Nerves: Schema<br />
NEUROANATOMY<br />
Long ciliary nerve<br />
Short ciliary nerves<br />
Anterior ethmoidal nerve<br />
Superior oblique muscle<br />
Levator palpebrae<br />
superioris muscle<br />
Superior<br />
rectus muscle<br />
Ciliary ganglion<br />
Posterior ethmoidal nerve<br />
Sensory root of ciliary ganglion<br />
Sympathetic root of ciliary ganglion<br />
Superior division of<br />
oculomotor nerve<br />
Frontal nerve (cut)<br />
Lacrimal nerve (cut)<br />
Nasociliary nerve<br />
Abducent nucleus<br />
Trochlear nucleus<br />
Oculomotor nucleus<br />
Accessory oculomotor<br />
(Edinger-Westphal)<br />
nucleus (parasympathetic)<br />
Trochlear nerve (IV)<br />
Oculomotor nerve (III)<br />
Ophthalmic nerve (V 1 )<br />
Infraorbital nerve<br />
Zygomatic nerve (cut)<br />
Inferior oblique muscle<br />
Ciliary muscle<br />
Dilator muscle of pupil<br />
Sphincter muscle of pupil<br />
Efferent fibers<br />
Afferent fibers<br />
Sympathetic fibers<br />
Parasympathetic fibers<br />
Pterygopalatine<br />
ganglion<br />
Inferior division of<br />
oculomotor nerve<br />
Medial rectus muscle<br />
Inferior rectus muscle<br />
Parasympathetic root<br />
of ciliary ganglion<br />
Abducent<br />
nerve (VI)<br />
Mandibular nerve (V 3 )<br />
Internal carotid artery<br />
and nerve plexus<br />
Maxillary nerve (V 2 )<br />
Lateral rectus muscle and<br />
abducent nerve (turned back)<br />
Cavernous plexus<br />
Common tendinous ring<br />
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