sneeze reflex

The sneeze reflex is an involuntary, sudden, and violent expulsion of air through the nose and mouth. It is triggered by an irritant in the nose, which stimulates sensory nerves. This leads to a reflex arc involving the central nervous system, resulting in a coordinated muscular action that expels the irritant. This reflex is crucial for clearing the nasal passages and preventing foreign substances from entering the respiratory system. While often considered a simple reflex, the response can be modified through learning and habituation.12