Which area is out of the blood brain barrier
Ans. is 'd' i.e. Area Postrema There are four areas which lie outside the blood brain barrier : these areArea postremaOrganum vasculosum of the lamina terminalis (OVLT)Subfornical organ (SFO)The posterior pituitary (neurohypophysis) and the adjacent ventral part of the median eminence of the hypothalamus.These areas are also called as circumventricular organs.
Thalmus
Cerebral cortex
IV ventricle
Area postrema
Meninges & Blood Vessels of the Brain