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What is Blood-testis barrier is formed by - and explain in detail?
Ans. is 'a' i.e., Sertoli cells o Blood brain barrier - Tight junction between endothelial cells and some reinforcement by foot process of astrocytes.o Blood CSF barrier -Tight juction between endothelial cells plus tight junction between choroidal epithelial cells.o Blood testis barrier - Tight junction betw-een endothelial cells plus sertoli cells.