white matter of brain

Here is a conjecture about Jingluo: "the essence of Jimgluo is in CNS, the lines of Jingluo on soma is only actually a mapping of some strong connection networks in cortex or white matter of brain".

作者对经络提出了一种大胆的猜想，即“经络实质是存在于中枢神经系统，经络线实际上是在大脑皮层或白质中的强联系网络在躯体上的映像。”

The findings show that long term exposure to greenness is positively associated with white and grey matter volumes in several parts of the brain.

研究结果表明，长期暴露在绿色环境中与大脑的白质和灰质体积呈正相关。

They are likely to come with larger volumes of white and grey matter in certain areas of the brain.

他们很可能在大脑的某些区域拥有大量的白质和灰质。