Difference between blood brain barrier and blood cerebrospina fluid barier?

[scilearner]

Hello everyone,

 

This is what I'm thinking. Tell me if this is wrong

 

Blood cerebrospinal fluid barrier: Blood goes through ependymal cells, which filter it, and create CSF that circulates in brain.

Blood brain barrier: This create CSF is further protected from incoming blood vessels, by this barrier allowing only some to diffuse.

 

Also what is tela choroidea, I know it is two layered fold of pia matter but how is helping to form chorodal plexus. Do blood vessel come from it?

 

Thanks :smile: