Monday, June 25, 2012

Located in the inner ear, the modiolus is a conical-shaped bony core around which the cochlea winds (two and a half times). It contains the spiral ganglion, which is made up of nerve cells whose axons form the auditory nerve (or cochlear nerve). The spiral ganglion in the modiolus receives acoustic information from the hair cells in the organ of Corti situated in the cochlear duct (scala media) of the cochlea and then send it to the brain temporal lobe through the auditory nerve.