上唇结节
Tuberculum labii superioris
定义
上唇中央、鼻中隔正下方有一凹陷，称为人中。人中末端有一小隆起，称为结节。
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/).
