Cells That are Important in the Blood-Brain Barrier are The

Question

Cells that are important in the blood-brain barrier are the
A) Schwann cells
B) microglia
C) astrocytes
D) oligodendrocytes

Accepted Answer

Astrocytes are important in the blood-brain barrier because they form a tight junction with the endothelial cells of the brain capillaries, restricting the passage of certain substances from the bloodstream into the brain tissue. Schwann cells, microglia, and oligodendrocytes are all types of cells found in the nervous system, but they do not have a major role in the blood-brain barrier.