pectoralis major:胸大肌。位于胸前壁表层的大片扇形肌肉,主要作用包括内收(把上臂拉向身体)、内旋以及在不同角度下的屈曲/伸展肩关节;在推、抱、攀爬等动作中很重要。(该词也常出现在解剖学与健身语境中。)
/ˌpɛktəˈrælɪs ˈmeɪdʒər/
The pectoralis major helps you push a door open.
胸大肌帮助你把门推开。
During the exam, the therapist tested his pectoralis major strength by asking him to press his arm toward his chest against resistance.
检查时,治疗师让他在阻力下把手臂向胸前压,以测试胸大肌的力量。
pectoralis 来自拉丁语 pectus,意为“胸部”;major 来自拉丁语 maior,意为“更大的”。合起来字面意思是“胸部的较大者”,用来与较小的 pectoralis minor(胸小肌) 区分。