What reflex is triggered by excessive lung inflation to stop inspiration?

The inflation reflex, also known as the Hering-Breuer reflex, is a protective mechanism in the respiratory system that is activated by excessive lung inflation. When the lungs expand beyond a certain point, stretch receptors located in the smooth muscles of the airways send signals to the brain to inhibit further inhalation. This reflex helps prevent overinflation of the lungs, thereby ensuring that breathing remains efficient and that the airways are not damaged. The primary function of this reflex is to promote a more balanced respiratory cycle by stopping inspiration when the lungs reach a certain level of inflation, allowing for normal expiration and maintaining optimal lung function.