镫骨
Stapes
定义
镫骨因形似马镫而得名,由头、颈、两脚及底板组成。• 镫骨头(capitulum stapedis)呈关节凹面,覆以软骨,与砧骨的豆状突相接。• 镫骨颈为骨干头后之狭窄部位,为镫骨肌腱的附着处。• 两脚(前脚 crus anterius 与后脚 crus posterius)自颈处分叉,其远端以一扁平卵圆板——镫骨底板(basis stapedis)相连,底板即“足板”,通过镫骨环状韧带固定于前庭窗(卵圆窗)缘。两脚中以前脚较短、弯曲度较小,后脚较长而弯曲
參考資料
This definition incorporates text from a public domain edition of Gray's Anatomy (20th U.S. edition of Gray's Anatomy of the Human Body, published in 1918 – from http://www.bartleby.com/107/).