Why do you sneeze when you have a cold or flu
Answers
Answer:
That's generally the sign of common cold
Answer:
A sneeze is a semi-autonomous, convulsive expulsion of air from the lungs through the nose and mouth, usually caused by foreign particles irritating the nasal mucosa. The function of sneezing is to expel mucus containing foreign particles or irritants and cleanse the nasal cavity.
In addition to sneezing, you may experience a stuffy nose, sore throat and fever.Sneezing can be an early symptom of a cold or allergy and is the result of the inflammation of the trigeminal nerve in the nose. This nerve is linked to the sneeze center of the brainstem and send signals that prompt a person to sneeze.
Sneezing is triggered when the mucous membranes of the nose and throat are irritated. When a cold virus infects nasal cells, the body releases its own natural inflammatory mediators, such as histamine.This leads to the irritation that causes sneezing.