GROSS ANATOMY
CRANIAL NERVES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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CN III
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CN IV
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CN VI
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CN VII
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Detailed explanation-1: -Neurogenic diplopia occurs with paralysis of 3 cranial nerves (oculomotor nerve CN III, trochlear nerve CN IV, and abducens nerve CN VI), especially abducens nerve (CN VI) are the most common causes of binocular diplopia.
Detailed explanation-2: -Diplopia is the most common symptom of cranial nerve dysfunction with cranial nerve VI being the most frequently affected, followed by cranial nerves III and IV.
Detailed explanation-3: -Cranial nerve six (CN VI), also known as the abducens nerve, is one of the nerves responsible for the extraocular motor functions of the eye, along with the oculomotor nerve (CN III) and the trochlear nerve (CN IV).
Detailed explanation-4: -The abducens nerve controls the lateral rectus muscle, which abducts the eye.
Detailed explanation-5: -Injury (especially if a skull fracture is present) Stroke. Infection (for instance, from Lyme disease or from a virus) Brain tumor. Inflammation of the nerve, for instance, after a vaccine. Multiple sclerosis. Elevated pressure inside the brain (for instance, from meningitis)