Tight junctions between capillary endothelial cells in the central nervous system create the blood -brain barrier, thereby restricting what type of movement of molecules into the brain?
A) diffusion of lipophilic
B) transcytosis of
C) diffusion of hydrophilic
D) facilitated diffusion of hydrophobic
E) active transport of

Question

Quizplus · Accepted Answer

Tight junctions in the blood-brain barrier restrict the diffusion of hydrophilic molecules into the brain, as these molecules cannot easily pass through the lipid bilayer of cell membranes without specific transport mechanisms.

Tight Junctions Between Capillary Endothelial Cells in the Central Nervous