parencephalon

例句：

1. 1.The parencephalon is a structure in the brain that helps regulate the flow of blood.
   脑室是大脑中的一种结构，有助于调节血液流动。
2. 2.In some cases, the parencephalon may be enlarged due to an infection or injury.
   在某些情况下，由于感染或损伤，脑室可能会扩大。
3. 3. The parencephalon is responsible for the storage and distribution of cerebrospinal fluid.
   脑室负责存储和分配脑脊液。