ground membrane的用法和樣例：
例句
- All cells touch the basement membrane, but only the taller cells reach the lumen.
所有細胞基部均與基膜相接處，只有高的細胞頂部到達管腔表面。 - It was the podocyte that firstly formed basement membrane, and then the endothelial cells continued.Fusion of them led to the formation of a thick glomerular basement membrane.
足細胞下先出現電子密度較低的基膜，隨后內皮細胞下才出現基膜，以后，二者融合形成一層電子密度較高的血管球基膜。
