星形的

Actinostele A rype of protostele in which the xylem is star shaped and the phloem lies between the points of the star.

原生中柱一种类型。木质部是星形，韧皮部位于星形之间。

The permeability of blood-brain barrier (BBB) was detected by Evans Blue (EB) leakage method, and the ultrastruncture of BBB, which contained astroglia, was observed under electron microscopy.

伊文思蓝(EB)渗出法检测血(BBB)通透性。透射电镜察星形胶质细胞BBB超微结构变化。