"Blood brain barrier" is present at all of the following sites except: (A) Habenular nucleus, (B) Subfornical organ, (C) Cerebellum, (D) Pontine nucleus
Answer is B. Structures outside blood brain barrier
-        Posterior pituitary
-        Ventral part of median eminence of hypothalamus
-        Area postrema
-        Organ vasculosum of lamina terminalis (OVLT)
 
-        Subfornical organ