在澳大利亚阿德雷德大学进行尸体解剖时，发现澳大利亚籍成年男性右半侧头颈部上，右侧的肩肿舌骨肌走行变异。此肌有正常起自肩胛骨上缘和肩胛横韧带的下缘，肌纤维斜向内上方，于胸锁乳突肌的深侧，在第七颈椎水平，移行为中间腱。其上腹走行异常，先在颈内静脉的外则，肌纤 At the University of Adelaide, Australia for autopsy, found that the right adult male Australians right and left head and neck, the right shoulder and hyoid muscle variation. This muscle has normal from the upper edge of the scapula and the transverse margins of the shoulder blades, muscle fibers diagonally upward, deep in the sternocleidomastoid muscle, at the level of the seventh cervical vertebra, migrating to the middle tendon. Abdominal abnormalities, the first in the external jugular vein, muscle fiber