Tightly Connected Endothelial Cells Lining the Brain Capillaries ________

Tightly connected endothelial cells lining the brain capillaries ________. (Select all that apply)

A) regulate the transport of material into the brain, restricting pathogen access
B) restrict oxygen transport making it impossible for brain infections by aerobic pathogens
C) send a signal to the hypothalamus to generate a fever to prevent pathogen growth
D) are known as the blood-brain barrier