AP BIOLOGY

Detailed explanation-1: -The sound waves enter the inner ear and then into the cochlea, a snail-shaped organ. The cochlea is filled with a fluid that moves in response to the vibrations from the oval window.

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: -The eardrum vibrates. The vibrations are then passed to 3 tiny bones in the middle ear called the ossicles. The ossicles amplify the sound. They send the sound waves to the inner ear and into the fluid-filled hearing organ (cochlea).

Detailed explanation-4: -Vibration of the stapes at the oval window causes motion in a fluid within the scala vestibuli of the inner ear, called perilymph. In short, the ossicles help amplify incoming sound waves and convert the sound vibrations into mechanical energy.

Detailed explanation-5: -The vibrations are transmitted further into the ear via three bones (ossicles): malleus (hammer), incus (anvil), and the stapes (stirrup). These three bones form a bridge from the tympanic membrane to the oval window. 5. Once sound passes through the oval window, it enters into the cochlea in the inner ear.