AP PSYCHOLOGY

Detailed explanation-1: -The stapes pushes in and out against a structure called the oval window. This action is passed onto the cochlea, a fluid-filled snail-like structure that contains the organ of Corti, the organ for hearing. It consists of tiny hair cells that line the cochlea.

Detailed explanation-2: -These bones are called the malleus, incus, and stapes. The bones in the middle ear amplify, or increase, the sound vibrations and send them to the cochlea, a snail-shaped structure filled with fluid, in the inner ear.

Detailed explanation-3: -In the middle ear, the ear ossicle malleus transmits the sound vibration to the incus which in turn transmits it to the stapes. The stapes passes the sound vibration to the oval window of the cochlea. This leads to movement of fluid within the cochlea and activation of receptors for hearing.