postgnathal

例句：

1. 1. The postgnathal region is where the brain and spinal cord meet.
   后颅骨区域是大脑和脊髓交汇的地方。
2. 2.The postgnathal ridge runs along the back of the skull.
   后颅骨嵴沿着颅骨的背部延伸。
3. 3.The postgnathal foramen is a small opening in the skull through which nerves pass.
   后颅骨孔是颅骨中的一个小开口，神经通过这个开口进入。