后柱
Columna posterior
定义
后柱（columna posterior；posterior cornu）细长，向后外侧方向延伸：其延伸范围几乎达到右室后支沟，与该沟之间仅由一薄层白质相隔，即利骚尔束（Lissauer束）。
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/).
