fundus of internal acoustic meatus

例句：

1. 1.The fundus of the eye is wherethe retina and optic nerve meet.
   眼睛的内耳是视网膜和视神经相遇的地方。
2. 2. The fundus of thebrain is the area that contains thecerebral cortex.
   大脑的内耳是包含大脑皮层的区域。
3. 3. Funduscopy is a medical procedure used toexamine the inner ear.
   鼓室镜是一种用于检查内耳的医疗程序。