| The air pressure on either side of the eardrum is normally kept equal for proper functioning of the middle ear structures, namely the malleus, incus and stapes bones. |
| Mr Bell removed the stapes, and attached to the end of the incus a style of hay about an inch in length. |
| In such cases, the malleus head and the incus body remain fixed together but the entire bloc is displaced. |
| This handpiece is specially recommended for canalplasty, ossiculoplasty and incus and malleus stapedotomy. |
| Another ligament attaches to the body of the incus and binds it to the roof of the middle ear. |
| The joint between the incus and stapes is likewise a cartilagenous joint, with a tendency to ossify in older humans. |
