Microglia
A) are part of the blood-brain barrier.
B) are phagocytic cells in the CNS.
C) produce cerebrospinal fluid.
D) form myelin sheaths.
E) are part of the choroid plexus.

Question

Quizplus · Accepted Answer

Microglia are phagocytic cells in the central nervous system (CNS) that play a key role in immune defense by clearing cellular debris and pathogens. They are not part of the blood-brain barrier, do not produce cerebrospinal fluid, and do not form myelin sheaths. The choroid plexus is a structure in the brain that produces cerebrospinal fluid but does not contain microglia.