Hering Breuer reflex is an increase in-: (A) Duration of inspiration, (B) Duration of expiration, (C) Depth of inspiration, (D) Depth of expiration
Answer is B. Ans. (b) Duration of expiration(Ref: Ganong, 25th ed/p.658)Hering-Breuer inflation reflex response consists of,#Slowing of respiratory frequency#Increase in duration of expiration#Bronchodilation#Increased heart rate#Slight vasoconstriction