齿突凹
Fovea dentis
定义
寰椎前弓后面凹陷，其上有一光滑的卵圆形或圆形关节面，即齿突凹（寰椎齿突窝），与枢椎的齿突相关节。
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/).
