During meningitis, which of the following layers is the most likely to be a direct source of pathogens that may spread to the brain?
A) pia mater
B) arachnoid mater
C) dura mater
D) arachnoid villi
Pia mater is the first layer of the meninges which is directly exposed to brain so it is most likely to be direct source of pathogens during meningitis.
