Question

what cells make it possible for immune cells to cross the blood - brain barrier? part of the neuroimmune system was this helpful? enter the answer check it

Explanation:

Endothelial cells that line the blood - brain barrier can undergo changes to allow immune cells to cross under certain conditions such as inflammation. Pericytes and astrocytes also play roles in regulating this process, but endothelial cells are key in enabling the passage.

Answer:

Endothelial cells