The Stapes, so called from its resemblance to a stirrup, consists of a head, neck, two crura, and a base.

• The head (capitulum stapedis) presents a depression, which is covered by cartilage, and articulates with the lenticular process of the incus.
• The neck, the constricted part of the bone succeeding the head, gives insertion to the tendon of the Stapedius muscle.
• The two limbs (crus anterius and crus posterius) diverge from the neck and are connected at their ends by a flattened oval plate, the base (basis stapedis), which forms the foot-plate of the stirrup and is fixed to the margin of the fenestra vestibuli by a ring of ligamentous fibers. Of the two crura the anterior is shorter and less curved than the posterior

Cette définition contient du texte provenant d'une édition publique de Gray's Anatomy (20eme édition Américaine de "Gray's Anatomy of the Human Body" publiée en 1918 -


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