Which path does sound entering the human ear follow?

The path that sound entering the human ear follows is: ear drum → ossicles → oval window. When sound waves enter the ear, they travel down the ear canal and strike the eardrum, causing it to vibrate. These vibrations are then transmitted through three tiny bones in the middle ear, known as the ossicles, which amplify and transmit the sound to the oval window. The oval window, a membrane-covered opening in the cochlea, then vibrates, which stimulates the fluid inside the cochlea, producing nerve impulses that the brain interprets as sound.