1Middle ear
Ossicular chain
The malleus, incus and stapes carry the eardrum’s vibration to the oval window. Their lever and the change in area raise the pressure by up to 22 times.
Follow a sound from the air to the nerve.
Two moving models of the ear, built like machines on a desk. Turn the loudness up and down to see how the middle ear pushes sound into the cochlea, and how hair cells turn that motion into nerve signals.
- Air
- 1Middle ear
- 2Cochlea
- Nerve
2Inner ear
Organ of Corti
Inside the cochlea, the basilar membrane flexes, hair bundles tilt, and inner hair cells pass the signal to the auditory nerve.