Which area is out of the blood brain barrier
Thalmus
Cerebral cortex
IV ventricle
Area postrema
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.
Meninges & Blood Vessels of the Brain