Re: What is snot for?
Here are few explanations I found on the web:
Mucus is a thick and slimy secretion from mucous membranes and glands. It contains mucin (a slippery lubricant), white blood cells, inorganic salts, water, and cells that have peeled away from tissue. It lubricates and protects areas of the body where mucous membranes are present -- the digestive tract included. Mucus also makes swallowing easier, prevents stomach acid from harming your stomach wall, and catches smoke, particles, and other pollutants in your airways so they won't enter the lungs. Mucus also facilitates sexual intercourse. Is this goo good or bad? It's definitely good because it does all of the above, but "bad" when it drips on your books, keeps you up at night, and gathers in gobs at the back of your throat.
Facial tissues and handkerchiefs were designed to receive and conceal snot -- sidewalks, walls, and water fountains were not. Preventive nose wiping and blowing should cut down on the quantity of goo that collects in your nose and throat, and thus the dripping and desire to launch it.
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When you have a cold the linings of your nose and / or throat swell. Thick, clear liquid called mucus forms and its purpose is to wash away the germs.
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In the nose, mucous has two roles. Along with tiny hair-like projections called cilia (SILLY-UH), it traps dust, bacteria, and other small particles breathed in with air. Working together as a filtering team, they make the air easier to breathe, cleaner and more free of such harmful things as bacteria.
But mucous also lubricates and protects the nose. So it's pretty complicated stuff.
Basically, it's a mixture of water and the particles that it and the cilia filter out. It also includes shed epithelial (EH-PI-THEEL-EE-AL) cells, dead leukocytes (LOO-KUH-SITES), dead bacteria and their products, mucin (MEW-SUN), and inorganic salts.
Epithelial cells line all the inside surfaces of your body, including your nose. They die and are shed much like the skin that peels off in the shower when you have a sunburn. Mucous acts like a shower in your nose, washing away the elderly cells.
White blood cells, or leukocytes, are soldiers in the war on bacteria and other foreign material in your nose. Leukocytes protect your nose (and your body) by swallowing all that bad stuff. Then they die and are washed out in mucous.
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The skin and mucous membranes form the body's first line of defense against disease. Most microscopic pathogens, or microbes, cannot pass through unbroken skin, although they can easily enter through cuts and other wounds. Mucous membranes protect internal organs that are connected with the outside of the body. These membranes, which line the respiratory, digestive, urinary, and reproductive tracts, secrete a sticky fluid called mucus, which traps microbes. The mucus may then be expelled from the body, perhaps in a cough or sneeze or in feces. If the mucus is swallowed, digestive juices kill the microbes.
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As part of your daily fertility chart, monitoring changes in cervical mucus (CM, cervical fluids) is pivotal in determining the best time to make procreative love. ... Ooops, wrong mucous.
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Seems there are as many answers as there are colors shapes and sizes of...
Eactly it helps in bowal movement>>>>phew
