lowermost belly of omohyoid muscle

例句：

1. 1.The omohyoid muscle is responsible for the movement of the tongue.
   下颌肌负责舌头的运动。
2. 2. During sleep, the omohyoid muscle relaxes to allow the jaw to open.
   在睡眠中，下颌肌放松以允许下颌打开。
3. 3. A misalignment of the omohyoid muscle can cause problems with chewing and speaking.
   下颌肌的错位可能导致咀嚼和说话的问题。