胸骨下
Angulus infrasternalis
定义
胸骨下角（肋下角）由胸廓前方第十、九、八、七肋软骨共同构成，这些肋软骨在两侧向上延伸，其顶端有剑突突出。
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/).
