237.The blood brain barrier is present in all except

a.Postrema area
b.Subfornical organ
c.Neurohypophysis
d.Habernacular trigone

Ans-d.Habernacular trigone


Explanation:Refer ganong's physiology 22ed pg 615
Remember SONA OR SOAP Subfornical organ
Organum vasculosum
area postrema
posterior pituitary/neurohypophsis

236.Anaesthetic agent of choice in renal and hepatic failure

a.Doxacurium
b.Tubocurarine
c.Pancuronium
d.Atracurium

Ans-d.Atracurium


Isoflorane is also the anaesthetic of choice in renal and hepatic failure
Ref K.D.Tripathi 5th ed pg 314

235.Most common nerve used for monitoring anaesthesia

a.Ulnar nerve
b.Facial nerve
c.Radial nerve
d.Median nerve


Ans-a.Ulnar nerve

Explanation-Ref Ajay yadav Anaesthesia pg 46