PHYSIOLOGY
CENTRAL NERVOUS SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Optic
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Trigeminal
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Vestibulocochlear
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Vagus
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Detailed explanation-1: -To quickly assess the auditory component, a simple test is done with the patient in sitting position. Cover one of the patient’s ears at a time. At around 60cm distance of the open ear whisper a couple of numbers at the end of exhalation and ask the patient to repeat them. Repeat the procedure with the other ear.
Detailed explanation-2: -The function of the vestibulocochlear nerve is purely sensory. It has no motor function. It communicate ssound and equilibrium information from the inner ear to the brain. The cochlea, the part of the inner ear where the cochlear part of the nerve originates, detects soundwaves.
Detailed explanation-3: -Vestibular neuritis is a self-limiting disease with vestibular symptoms lasting for one to two days, followed by a gradual reduction in symptoms. Rarely does the illness lasts more than several days to a few weeks. Early improvement in symptoms is believed mainly due to central compensation.