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Stapes
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{{Short description|Bone of the middle ear}} {{Italic title}} {{Infobox bone | Name = ''Stapes'' | Latin = ''stapes'' | Image = Stapes bone svg hariadhi.svg | Caption = Frontal view of ''stapes'' (A), and view from below (B). | Precursor = Second [[branchial arch]] | PartOf = [[Middle ear]] | Pronunciation = {{IPAc-en|'|s|t|ei|p|i:|z}} | System = [[Auditory system]] | Articulations = [[Incudostapedial joint]] }} {{Ear series|expanded=Middle}} The '''''stapes''''' or '''stirrup''' is a [[bone]] in the [[middle ear]] of humans and other tetrapods which is involved in the conduction of sound vibrations to the [[inner ear]]. This bone is connected to the [[oval window]] by its [[Annular ligament of stapes|annular ligament]], which allows the footplate (or base) to transmit sound energy through the [[oval window]] into the inner ear. The ''stapes'' is the smallest and lightest bone in the [[human body]], and is so-called because of its resemblance to a [[stirrup]] ({{langx|la|Stapes}}).
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