MRCP UK EXAMINATIONS

NEUROLOGY

SURGERY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A sensorineural (perceptive hearing loss results from impairment of the ____ cranial nerve.
A
eighth
B
sixth
C
tenth
D
seventh
Explanation: 

Detailed explanation-1: -Sensorineural hearing loss (SNHL) is a type of hearing loss in which the root cause lies in the inner ear or sensory organ (cochlea and associated structures) or the vestibulocochlear nerve (cranial nerve VIII). SNHL accounts for about 90% of reported hearing loss.

Detailed explanation-2: -Less frequently, sensorineural hearing loss may occur in just one ear as the result of damage to the eighth cranial nerve, which is the nerve pathway that carries information about sound from the inner ear to processing centers in the brain.

Detailed explanation-3: -Cranial nerve VIII brings sound and information about one’s position and movement in space into the brain. The auditory and vestibular systems subserve several functions basic to clinical medicine and to psychiatry.

Detailed explanation-4: -In rare cases, labyrinthitis causes lasting (permanent) damage to the eighth cranial nerve. This can cause lasting problems with balance, and part or total hearing loss. You might need to use a hearing aid. Get treatment right away to help reduce your risk for these complications.

There is 1 question to complete.