The "Blood Brain Barrier" Is Primarily the Result of

Multiple Choice

The "blood brain barrier" is primarily the result of

A) a number of astrocyte cells between the brain's extracellular space and the neurons
B) the brain capillaries' tightly packed endothelial cells and minimal pores
C) brain capillaries being separated from the blood vessels of the rest of the body
D) glial feet lining the brain's extracellular space