sternocleidomastoid

n.胸锁乳突肌

adj.胸锁乳突的

Finally, the sternocleidomastoid muscle pulled upward on the medial part of the fractured clavicle, leading to the rupture of the periosteum. 最后，胸锁乳突肌向上牵拉锁骨内侧部的骨折部分，导致骨膜破裂。

Finally, the sternocleidomastoid muscle pulled upward on the medial part of the fractured clavicle, leading to the rupture of the periosteum. 最后，胸锁乳突肌向上牵拉锁骨内侧部的骨折部分，导致骨膜破裂。