Otoacoustic emissions arise from ?
Outer hair cells
Inner hair cells
Both
Organ of coi
Otoacoustic Emissions (OAEs) They are low intensity sounds produced by outer hair cells of a normal cochlea and can be elicited by a very sensitive microphone placed in the external ear canal and an analysis by a computer. Sound produced by outer hair cells travels in a reverse direction: Outer hair cells-basilar membrane- perilymph- oval window- ossicles- tympanic membrane- ear canal. Otoacoustic emissions arise from the outer hair cells. Otoacoustic emissions (OAE) are objective, non-invasive and rapid measures used in determining cochlear outer hair cell function. OAE are inaudible sounds that are a byproduct of the biomechanical motility of the outer hair cells.