Al-Missri Murtaja Z., Al Khalili Yasir
IAU
Virginia Commonwealth University
The is the only unpaired triangle of the anterior triangle of the neck. It is limited by the body of the hyoid bone and the anterior bellies of the digastric muscle. The mylohyoid muscles form the floor of the submental space. However, the submental triangle can be absent or distorted because the anterior belly of the digastric muscle varies in anatomy and may be absent . This area is clinically relevant as it contains essential anatomical structures, such as the submental lymph nodes that may serve as good indicators to determine metastasis .
颏下三角是颈部前三角中唯一的不成对三角。它由舌骨体和二腹肌前腹限定。下颌舌骨肌构成颏下间隙的底部。然而，颏下三角可能不存在或形态异常，因为二腹肌前腹在解剖结构上存在变异，甚至可能缺如。该区域具有临床相关性，因为它包含重要的解剖结构，如颏下淋巴结，可作为判断转移的良好指标。
