Classification Conductive deafness Sensorineural deafness Sensory deafness Lesion located in cochlea cochlear deafness) Nervous deafness a Lesion located in retrocochlear(retrocochlear deafness) Mixed deafness 1. Eardrum 5 Semcretear canals-B Vestibular nerve dal Nerve 4 SIDesClassification ◼ Conductive deafness ◼ Sensorineural deafness ◼ Sensory deafness ◼ Lesion located in cochlea ( cochlear deafness) ◼ Nervous deafness ◼ Lesion located in retrocochlea (retrocochlea deafness) ◼ Mixed deafness