颏棘
Spina mentalis inferior
定义
颏下棘（又称下颏结节）是位于下颌骨内侧（舌侧）面的一对细小骨性突起。它们位于联合部下份，分布于正中线两侧，紧邻颏上棘下方。颏下棘作为颏舌骨肌的附着点，该肌肉在吞咽和言语活动中发挥关键作用，并协助舌骨与下颌骨的运动。
參考資料
Drake, R.L., Vogl, A.W. and Mitchell, A.W.M. (2009). ‘Chapter 8: Head and Neck’ in Gray’s anatomy for Students. (2nd ed.) Philadelphia PA 19103-2899: Elsevier, pp. 814.
Breeland G, Aktar A, Patel BC. Anatomy, Head and Neck, Mandible. [Updated 2023 Apr 1]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2024 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK532292/
