This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
Veical crest in fundus of the internal auditary canal is k/a: 
Select and explain. 
A. Bill's bar, B. Ponticul us, C. Cog, D. Falciform crest
A: Bill's bar
Answer: A: Bill's bar 
Explanation: A ie Bill's Bar Veical crest in fundus of internal auditory canal is K/a Bill's -bar(2. And it is used as a surgical landmark for facial nerve identification.