人中
Philtrum
定义
The upper lip has a depression at its center, directly under the nasal septum, called the philtrum. At the extremity of the philtrum is a small elevation called the tubercle.
上唇中央有一处下降，位于鼻中隔正下方，称为人中。人中末端有一处小的上升，称为结节。
參考資料
This definition incorporates text from the wikipedia website - Wikipedia: The free encyclopedia. (2004, July 22). FL: Wikimedia Foundation, Inc. Retrieved August 10, 2004, from http://www.wikipedia.org
