What is modiolar?

The modiolar is a bony canal located in the inner ear. It is a part of the cochlear duct and houses the spiral ganglion, which contains the cell bodies of the auditory nerve fibers. The modiolar spiral is a prominent, central structure that runs through the center of the cochlea. It is believed to play a critical role in the transmission of sound signals from the outer and middle ear to the brain. The modiolar spiral also serves as an anchor for the basilar membrane, which forms the floor of the cochlear duct. Damage to the modiolar spiral can result in hearing loss or other auditory disorders.