fissura hippocampi

例句：

1. 1.The hippocampus is the part of the brain responsible for memory and learning.
   海马是负责记忆和学习的脑区。
2. 2.Fissures in the rock can be used to determine the age of the rock.
   岩石中的裂缝可以用来确定岩石的年龄。
3. 3. The fissures in the rock were caused by the movement of the earth's crust.
   岩石中的裂缝是由地壳的运动造成的。