他们发现从邻近细胞接受信息的神经细胞的小分支——树突脊的大小和数目发生了逐步的减少。

And what they saw is a steady decrease in the size and number of dendritic spines, the tiny branches of the nerve cell that receive messages from nearby cells.

youdao

它被包围着的颅骨和三层坚韧的细胞膜被称作脑（脊）膜保护着。

This is provided by the surrounding skull and three tough membranes called meninges.

youdao

不同于许旺氏细胞瘤，脊膜瘤主要位于上段和中段胸椎水平，但是在前后方向有相似的分布。

Meningiomas are predominately located in the upper and mid- thoracic areas, different from schwannomas, but are in a similar distribution in the anterior-posterior plane.

youdao