EVERYDAY SCIENCE

Detailed explanation-1: -Sneezing is a protective reflex, and is sometimes a sign of various medical conditions. Sneezing has been a remarkable sign throughout the history. In Asia and Europe, superstitions regarding sneezing extend through a wide range of races and countries, and it has an ominous significance.

Detailed explanation-2: -Introduction Sneezing is a coordinated protective respiratory reflex which occurs due to stimulation of the upper respiratory tract, particularly the nasal cavity.

Detailed explanation-3: -Like cough (Ch. 2), sneezing is a complex reflex process characterized by a powerful expiratory effort preceded by one or several deep inspirations. Together with cough, it is one of the most important defensive reflexes of the respiratory tract (Ch. 1.21), but it has been studied incomparably less than cough.

Detailed explanation-4: -How Does it Happen? These nerves carry the irritant or impulses to what is called the “sneezing center” (we have one of those?) in the brain which then continues to the facial nerve and other nerves that lead to the lungs and diaphragm which all lead up to the climax of the simple sneeze.

Detailed explanation-5: -Reason: Coughing and sneezing are reflex actions.