Acoustic Reflex. Definition

Medical Definition: Acoustic Reflex

Acusticofacial reflex whose afferent pathway is represented by the auditory nerve and central auditory connections to the cochlear nuclei and the efferent pathway of which are the connections between the cochlear nuclei and the facial nerve motor nucleus. Abutment contraction occurs after stimulation of the ear with a sound of at least 80 dB above the hearing threshold of the patient. Their study is of great value for the determination of some hearing impairment and for the topographic diagnosis of facial nerve pathology.

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