Labels:daily OCR: OVAL INDOW "HE OVAL WINDOW is a hole the bone that separates the air- filled middle ear from the fluid filled inner ear.A thin covering, or membrane, stretches across The middle ear contains three tiny bones called ossicles. One ossicle, called the stirrup is fixed to the mem brane Sounds entering the ear cause the ossicles to move, pushing the stirrup back and forth through the oval window, like piston in cylinder. As the mem brane moves in and out, it sends vibrations through the fluid of the inner ear, which has tiny sensory hairs to detect vibrations. bacl send
