genu of facial nerve

例句：

1. 1. 颧骨；2. 颌骨；3.
   动物的
2. 4.
   人的
3. 5.
   动物的
4. 1. The dentist removed the tooth with a drill and replaced it with a dental implant.
   牙医用钻头取出了这颗牙齿，并用假牙替代。
5. 2. The scientist used X-rays to examine the bones of the animal's jaw.
   科学家用X光检查了动物下颌骨的情况。
6. 3. She had her lower jaw wired shut after an accident.
   她因事故而将下颌骨固定。