abducens nerve


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Related to abducens nerve: trochlear nerve

abducens

 [ab-du´senz] (L.)
abducens nerve the sixth cranial nerve; it arises from the pons and supplies the lateral rectus muscle of the eyeball, allowing for motion. Paralysis of the nerve causes diplopia (double vision). See anatomic Table of Nerves in the Appendices.

ab·du·cent nerve [CN VI]

[TA]
a small motor nerve supplying the lateral rectus muscle of the eye; its origin is in the facial colliculus of the tegmentum of the pons just below the surface of the rhomboid fossa. It emerges from the brain in the fissure between the medulla oblongata and the posterior border of the pons (medullopontine sulcus); it enters the dura of the clivus and passes through the cavernous sinus, entering the orbit through the superior orbital fissure.
Synonym(s): nervus abducens [CN VI] [TA], abducens nerve ☆ , abducent (2) , sixth cranial nerve [CN VI]

abducens nerve

Etymology: L, abducere, to take away
either of the paired sixth cranial nerves. It arises in the pons near the fourth ventricle, leaves the brainstem between the medulla oblongata and pons, and passes through the cavernous sinus and the superior orbital fissure. It controls the lateral rectus muscle, turning the eye outward. Also called abducent, nervus abducens,sixth cranial nerve.
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Abducens nerve

abducens nerve

the cranial nerve of vertebrates that supplies the external rectus muscle of the eye (see EYE MUSCLE); it is mainly MOTOR in function.

abducens

[L.] drawing away.

abducens nerve
see abducent nerve, and Table 14.
References in periodicals archive ?
All in all, binocular moving distance difference recovered before the maximal angle of diplopia in patients with diabetic abducens nerve palsy who received IEA therapy.
The patient was followed up after two week intervals and the degree of diplopia and abducens nerve palsy was noted.
Extra dural inflammation at petrous apex involving trigeminal ganglion and abducens nerve.
c) Abducens nerve paresis may be caused by ischaemia or raised intracranial pressure
Dr Simon Grant BSc PhD Oculomotor, trochlear or abducens nerve palsies are relatively common, but pose challenges for clinical management.
The cranial nerve most commonly affected was the abducens nerve, followed by the vestibulocochlear nerve and the trigeminal nerve.
Some authors believe it to be a part of extraocular muscle fibrosis syndrome which arises from dysfunction of oculomotor, trochlear and abducens nerve and the muscles they innervate causing incomitant strabismus with or without ptosis.
Ophthalmoplegic migraine with reversible enchancement of intraparenchymal abducens nerve on MRI.
Cranial nerve involvement is usually limited to the vestibulocochlear and facial nerves, but trigeminal and abducens nerve palsies have also been reported.
CNS examination revealed bilateral abducens nerve palsy and left sided VII nerve LMN type of palsy (Fig.
Unlike Manlapaz, [6] we found no case of abducens nerve palsy in our patients.
DISCUSSION: Most isolated abducens nerve palsy in patients over 50yrs of age is ischemic in nature.