弓下窩 - Fossa subarcuata
The subarcuate fossa is a depression above and between the internal acoustic opening and the opening of vestibular canaliculs. It is an irregular depression which lodges a process of the dura mater and transmits a small vein; in the infant this depression is represented by a large fossa which extends backward as a blind tunnel under the superior semicircular canal.
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/).
一般解剖学 > 骨、骨格系 > 軸骨格 > 頭蓋；ズガイ > 側頭骨 > 岩様部；錐体乳突部 > 錐体後面 > 弓下窩