英语语法分析

Conclusion: the facial artery is the main blood supply to the buccinator muscle.

结论：面动脉为颊肌的主要供血动脉。

Once the superficial modiolar muscles are removed, the extremely sturdy muscles of the cheeks, the buccinator , may be seen, and Fig.

当外表像蜗的轴肌肉在移动时，脸颊最结实的肌肉，颊肌，可能会显现出来。

The risorius and the buccinator muscles assist in the retraction of the lips, as well as support entrapment of air within the oral cavity.

笑 肌和颊 肌帮助唇的收缩，也支撑了整个口腔的气体流通。