軟なん膜まく

noun

pia mater

Anatomical term for the delicate innermost membrane enveloping the brain and spinal cord.

• 軟なん膜まくは脳のうと脊せき髄ずいを直ちょく接せつ包つつむ薄うすい膜まくです。

  The pia mater is a thin membrane that directly envelops the brain and spinal cord.