The sneeze part when the nerve sensors in the nose that are reported the presence of foreign particles. Take the emergency nose emits mucus, the respiratory muscles strongly compress the chest and those that control the respiratory system are close. When the air pressure in the lungs becomes too high, the airway open forcefully expelling air and particles. The spasm that accompanies the sneeze involves several muscles, including facial, responsible for the shaking of the eyes.
Eyes closed. And here's the thing: the fact that they close their eyes sneezing is probably a biological mechanism that serves to protect them. Eject particles from the nose requires a very high pressure, which turns into a speed of expulsion of about 160 km per hour. Close your eyes, then, can serve to prevent such pressure may damage the tear ducts.
Eyes closed. And here's the thing: the fact that they close their eyes sneezing is probably a biological mechanism that serves to protect them. Eject particles from the nose requires a very high pressure, which turns into a speed of expulsion of about 160 km per hour. Close your eyes, then, can serve to prevent such pressure may damage the tear ducts.
source: http://focus.it
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