what is happening when you sneeze?

Question

Also what are you releasing out of you body?

Answer 1

Sneezing, also called "sternutation," is the way the body removes irritants from the nose. The brain has a "sneeze center” that is stimulated by signals sent from the nose. This center relays a message to certain muscles that join to produce the intricate process you know as the sneeze.

The process includes muscles of the chest, abdomen, diaphragm (the muscle that controls breathing), vocal cords, throat and eyelids. People always close their eyes when they sneeze. The part of the brain that controls the sneeze is responsible for sending the message to the muscles in the proper sequence. When the message is relayed correctly, the sneeze occurs and the nose is cleared of the irritant.

Sneezing can send small particles from the nose at up to 100 miles per hour. A variety of irritants can cause sneezing. For some, pepper causes sneezing; others may sneeze in the presence of dust or as part of their body's allergic reaction to a dog, cat, grasses or pollen (found in plants, trees and flowers). For still others, none of these irritants will cause a sneeze.

Sneezing can accompany a cold or allergy. When the sneeze is allergy-related, the trigger may include dust, animals, pollen or mold (found inside and outside, especially where damp). In a cold-related sneeze, the cold virus is active in the nose, causing irritation and swelling of the nasal mucosa. Sneezes can get “stuck”: Sometimes you feel as if you are going to sneeze, but it never happens.

For some people, the bright sun can provoke a sneeze. About one out of three people sneezes in the presence of bright light. These sneezers are called "photics" (from the Greek word "phos," meaning "of light"). Photic sneezers run in families, since this trait is inherited.

Answer 2

A sternutation or, more commonly known, sneeze is a semi-autonomous, convulsive expulsion of air from the nose and mouth. This air can reach speeds of 100 mph and an unimpeded sneeze sends two to five thousand bacteria-filled droplets into the air.

Sneezing is generally caused by irritation and some times bacterial clog up in the throat, lungs or in the passages of the nose. Allergens such as pollens, pet dander, house dust mites, as well as nonallergenic particles are usually harmless, but when they irritate the nose the body responds by expelling them from the nasal passages. The nose mistakes strong odors, sudden chills, bright lights (see photic sneeze reflex), and even orgasms in some people for nasal irritants, and it tries to defend itself with a sneeze.

It is almost impossible for one to keep one's eyelids open during a sneeze, although some rare individuals report having little if any trouble doing so. The reflex of shutting the eyes serves no obvious purpose: the nerves serving the eyes and the nose are closely related, and stimuli to the one often trigger some response in the other. The closing of the eyes may be to protect the tear ducts and blood vessels from bacteria expelled in the sneeze.

Answer 3

its a myth that when you sneeze you are releasing demons out of you body.

Answer 4

Green and yellow mucas is rocketing towards the face of any unfortunate person near me.

Answer 5

u sneez and spit comes out

Answer 6

http://en.wikipedia.org/wiki/Sneeze

Answer 7

ewwww!!!!

Answer 8

snot