胸骨上骨
Ossa suprasternalia
定义
胸骨上骨（胸骨前骨）位于胸骨柄后缘上方或其上。它们属于异常结构，可为单个或成对、大小不一、融合或游离；其形态变化较大，可与胸骨柄相关节，亦可相互关节。
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/).
