This protects the brain by preventing the movement of harmful substances and pathogens from the blood into the brain tissue.
A)Dura mater
B)Arachnoid mater
C)Cerebrospinal fluid
D)Blood brain barrier
E)All of these choices

Question

Quizplus · Accepted Answer

The blood brain barrier is a protective mechanism that prevents the entry of harmful substances and pathogens from the blood into the brain tissue. It is made up of specialized cells that line the blood vessels in the brain and restrict the movement of molecules and cells between the blood and the brain. The other options (A, B, and C) are all components of the meninges and cerebrospinal fluid but do not directly protect the brain from harmful substances and pathogens.

This Protects the Brain by Preventing the Movement of Harmful