Sneezing, or sternutation, is a strong, sudden, uncontrolled burst of air through the nose and mouth.
sneeze-a symptom consisting of the involuntary expulsion of air from the nose. sneezing, sternutation. inborn reflex, innate reflex, instinctive reflex, physiological reaction, reflex, reflex action, reflex response, unconditioned reflex-an automatic instinctive unlearned reaction to a stimulus. sneeze. 1. to emit air or breath suddenly, forcibly, and audibly through the nose and mouth by involuntary, spasmodic action. 2. sneeze at, Informal. to treat with contempt; scorn: $50,000 is nothing to sneeze at. 3. an act or sound of sneezing. (May 2015). A sneeze, or sternutation, 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. During a sneeze, the soft palate and palatine uvula depress while the back of the tongue elevates to partially close the passage to the mouth so that air ejected from the lungs may be expelled through the nose. Sneezing is generally defined as a sudden, involuntary outflow of air from the lungs through the nose and mouth. It’s usually caused in response to some irritant of the upper airway, most often to the delicate mucous membranes that line the nasal passages.  Sneezing is your body’s way of removing irritants from your nose or throat. A sneeze is an involuntary and powerful expulsion of air. Sneezing often happens suddenly and without warning. Another name for sneezing is sternutation. While this symptom can be quite annoying, it’s not usually the result of any serious health problem. Treating the Underlying Causes of Sneezing. If your sneezing is a result of allergies or an infection, you and your doctor can work together to treat the cause and resolve your sneezing. Sneezes protect your body by clearing the nose of bacteria and viruses, Kao explains. When something enters your nose or you encounter a trigger that sets off your sneeze center in your brain, located in the lower brain stem, signals are rapidly sent to tightly close your throat, eyes, and mouth. Next, your chest muscles vigorously contract, and then your throat muscles quickly relax Sneezing, or sternutation, is a strong, sudden, uncontrolled burst of air through the nose and mouth. Sneezing is caused by an irritation to the nasal lining or the throat. Usually, sneezing is the result of dust or an allergen entering the nose. While sneezing is often annoying, it is usually not serious. It may occur as part of an allergic reaction or may accompany an infection or illness 1 The long-standing answer has been that sneezing is a reflex. 2  When irritants — such as germs, dust, pollen, animal dander, or pollutants, just to name just a few — infiltrate the nose lining, the brain sends out a signal to get rid of it. 3  That triggers a deep breath, which gets held in the lungs.  Causes of Sneezing. If your cat is sneezing a lot, your veterinarian may initially suspect a cause based on a review of your cat’s symptoms. One of the main causes of sneezing is infection. In some cases, the vet may take a swab from the mouth, throat, eyes, or nose and send it to a lab to confirm an infection. Inhaled irritants or allergens are other common causes of sneezing in cats. Viral, bacterial, or fungal infections. An occasional sneeze in a cat is normal and no real cause for alarm. Just as in humans, sneezing in cats is an explosive release of air through the nose and mouth-often the body’s response to irritants in the nasal passages.
http://www.thefreedictionary.com/sneeze https://en.wikipedia.org/wiki/Sneezing http://www.vetstreet.com/care/my-pet-is-sneezing-and-snorting-whats-going-on http://www.healthline.com/symptom/sneezing http://www.webmd.com/allergies/features/11-surprising-sneezing-facts http://www.healthgrades.com/symptoms/sneezing http://www.everydayhealth.com/allergy-pictures/why-we-sneeze-and-other-fun-facts-about-sneezing.aspx http://pets.webmd.com/cats/why-cats-sneeze
what is sneezing