"It has a base (foot piece/footplate) that articulates with the oval window and conducts vibrations to the cochlea. The base is attached to the neck via anterior and posterior arches (also called the anterior and posterior crura). On top of the neck (or hub) is a concave head (also known as the capitulum) which articulates with the lenticular process of the incus. The combination of the capitulum, neck, and crura is collectively referred to as the stapes superstructure (less commonly, and less correctly, suprastructure)."