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)facilitated diffusion of hydrophobic
C)diffusion of hydrophilic
D)active transport of
E)transcytosis of

Question

Quizplus · Accepted Answer

The blood-brain barrier restricts the diffusion of hydrophilic molecules, allowing only small, lipophilic molecules to passively diffuse through the endothelial cell membranes.

Tight Junctions Between Capillary Endothelial Cells in the Central Nervous