Hyperinflation of the lungs is prevented by: (A) Hering Breuer reflex, (B) Irritation reflex, (C) Cushing reflex, (D) Bainbridge reflex
Answer is A. Hering-Breuer inflation reflex: This reflex is mediated by pulmonary stretch receptors in which inflation of lungs above a particular volume results in reflex inhibition of inspiration and union of expiration.
The reflex tends to limit the tidal volume while increasing the respiratory frequency.
Hering-Breuer deflation reflex: - Rapid deflation of lungs tends to initiate prolonged inspiration, i.e., reflex hyperpnea in response to deflation.