后骨壶腹
Ampulla ossea posterior
定义
后骨半规管的下端膨大形成壶腹（后骨壶腹），开口于前庭的下后部，其上端与前骨半规管汇合形成总骨脚。
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/).
