岩下窦
Sinus petrosus inferior
定义
岩下窦（sinus petrosus inferior）位于由颞骨岩部与枕骨基底部连接处形成的岩下沟内。它起自海绵窦的后下部，穿过颈静脉孔前部，终止于颈内静脉上球。岩下窦接收内听静脉，以及来自延髓、脑桥和小脑下面的静脉。
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/).
