infundibula

例句：

1. 1.The infundibula is a small, spiral-shaped organ located at the base of the brain.
   中脑是大脑底部的一个螺旋形器官。
2. 2.The infundibula plays a crucial role in regulating blood pressure and heart rate.
   中脑在调节血压和心率方面起着至关重要的作用。
3. 3. In some species, the infundibula can be used to control the flow of cerebrospinal fluid.
   在某些物种中，中脑可以用于控制脑脊液的流动。