flu season - Mucus info.
Dec. 29th, 2000 01:33 pm![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
scottobearfrom straight dope -
How does my nose produce so much snot so fast when I have a cold?
As is true of all God's creation, mucus is good for you. No doubt you could stand to have a little less of it at times, but this shouldn't decrease our esteem for a fluid that is only trying to defend us against germs, dust, and other foreign matter. Evidently, since you got a cold, this defense against germs wasn't entirely successful. But the mucus is trying. You might show a little appreciation.
Under normal circumstances--that is, when you don't have a cold--nasal mucus is part of the system by which your body conditions "inspired air." (Inspired air is the term doctors use for inhaled air. They could just say "inhaled," but inspired has a much more elegant ring.) The air swirls through your nasal passages and gets warmed up. Meanwhile the dust and whatnot strikes the mucus-lined sides and sticks. Or to put it more technically, it strikes the mucus-lined ciliated epithelium of the posterior nasopharynx and . . . well, I guess "sticks" is not the word you want to use in this context. Adheres, let's say. The cilia (little hairs) and mucus then transport the debris to the rear of the mouth, whence you can hawk it up. This is called postnasal drip. Another of life's little annoyances that you ought to be grateful for.
As I say, the above mechanism is not a foolproof antimicrobial defense, and sometimes you get a cold. Your mucus then kicks into overdrive in an attempt to shed the virus or whatever bad thing it is you've got. Sometimes the mucus succeeds, at least to the point where you can continue to breathe through your nose. Sometimes it doesn't and your nose plugs up, and the infection takes root in your sinuses, producing the dreaded green globs and making you sound like your head was whittled from a potato. You think this is better than having a runny nose? I think not. Sorry if I sound like I'm dumping on you, but I'm trying to put matters in perspective. Your problem isn't the mucus, it's the germs.
The reason you have a seemingly inexhaustible supply of mucus when suffering from a cold is that the mucus-producing cells lining your nasal cavity extract the stuff mostly from your blood, of which needless to say you have a vast supply. The blood transports the raw materials (largely water) from other parts of the body. Fluid from your blood diffuses through the capillary walls and into the cells and moments later winds up in your handkerchief. (This process isn't unique to mucus; blood is the highway for most of your bodily fluids.) Incidentally, you produce less mucus than you may think. One experiment showed that on the peak day of a cold the average person produces about 14 grams of drippings, or roughly half an ounce.
Another question I'm asked from time to time is, what's the chemical formula for snot? (Listen, I've heard worse.) I have no definite answer to this. Ninety-five percent of mucus is H2O, while the remainder is protein, carbohydrate, lipids, and miscellaneous, the proportions and nature of which vary. I found some discussion in the medical literature about what makes mucus, um, stringy, but figured this was something you'd just as soon not know.
Finally, I came across an article entitled "Effects of Drinking . . . Chicken Soup on Nasal Mucus Velocity." About time somebody researched this. The article says the "Jewish penicillin" (authors' term) is indeed salubrious, although only for half an hour, largely because the healing vapors penetrate the nasal passages and loosen things up. So eat your chicken soup already; mama was right all along.
How does my nose produce so much snot so fast when I have a cold?
As is true of all God's creation, mucus is good for you. No doubt you could stand to have a little less of it at times, but this shouldn't decrease our esteem for a fluid that is only trying to defend us against germs, dust, and other foreign matter. Evidently, since you got a cold, this defense against germs wasn't entirely successful. But the mucus is trying. You might show a little appreciation.
Under normal circumstances--that is, when you don't have a cold--nasal mucus is part of the system by which your body conditions "inspired air." (Inspired air is the term doctors use for inhaled air. They could just say "inhaled," but inspired has a much more elegant ring.) The air swirls through your nasal passages and gets warmed up. Meanwhile the dust and whatnot strikes the mucus-lined sides and sticks. Or to put it more technically, it strikes the mucus-lined ciliated epithelium of the posterior nasopharynx and . . . well, I guess "sticks" is not the word you want to use in this context. Adheres, let's say. The cilia (little hairs) and mucus then transport the debris to the rear of the mouth, whence you can hawk it up. This is called postnasal drip. Another of life's little annoyances that you ought to be grateful for.
As I say, the above mechanism is not a foolproof antimicrobial defense, and sometimes you get a cold. Your mucus then kicks into overdrive in an attempt to shed the virus or whatever bad thing it is you've got. Sometimes the mucus succeeds, at least to the point where you can continue to breathe through your nose. Sometimes it doesn't and your nose plugs up, and the infection takes root in your sinuses, producing the dreaded green globs and making you sound like your head was whittled from a potato. You think this is better than having a runny nose? I think not. Sorry if I sound like I'm dumping on you, but I'm trying to put matters in perspective. Your problem isn't the mucus, it's the germs.
The reason you have a seemingly inexhaustible supply of mucus when suffering from a cold is that the mucus-producing cells lining your nasal cavity extract the stuff mostly from your blood, of which needless to say you have a vast supply. The blood transports the raw materials (largely water) from other parts of the body. Fluid from your blood diffuses through the capillary walls and into the cells and moments later winds up in your handkerchief. (This process isn't unique to mucus; blood is the highway for most of your bodily fluids.) Incidentally, you produce less mucus than you may think. One experiment showed that on the peak day of a cold the average person produces about 14 grams of drippings, or roughly half an ounce.
Another question I'm asked from time to time is, what's the chemical formula for snot? (Listen, I've heard worse.) I have no definite answer to this. Ninety-five percent of mucus is H2O, while the remainder is protein, carbohydrate, lipids, and miscellaneous, the proportions and nature of which vary. I found some discussion in the medical literature about what makes mucus, um, stringy, but figured this was something you'd just as soon not know.
Finally, I came across an article entitled "Effects of Drinking . . . Chicken Soup on Nasal Mucus Velocity." About time somebody researched this. The article says the "Jewish penicillin" (authors' term) is indeed salubrious, although only for half an hour, largely because the healing vapors penetrate the nasal passages and loosen things up. So eat your chicken soup already; mama was right all along.
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Snot
Date: 2000-12-29 11:17 am (UTC)Re: Snot
Date: 2000-12-29 11:19 am (UTC)Keep the fluids coming!
no subject
Date: 2000-12-29 11:39 am (UTC)heh heh heh...
Re:
Date: 2000-12-29 12:04 pm (UTC)thought it'd be funny, but it'snot.
Re:
Date: 2000-12-29 12:08 pm (UTC)you're silly. you make me laugh. i like you, scotto.
Re:
Date: 2000-12-29 12:22 pm (UTC)no subject
Date: 2000-12-29 01:16 pm (UTC)Thanks for the lovely info, I've actually always wondered that myself : )
my pleasure to provide! :)
Date: 2000-12-29 06:13 pm (UTC)no subject
Date: 2000-12-29 03:00 pm (UTC)I have always wondered why it is that I can produce a gallon of the stuff when sick and in "normal" moments have to inhail steam to get enough dampness to breath well, now I know. Thanks Scotto! *giggles profusely*
Re:
Date: 2000-12-29 08:30 pm (UTC)Inquiring minds want to know...
Date: 2000-12-29 04:33 pm (UTC)Re: Inquiring minds want to know...
Date: 2000-12-29 06:50 pm (UTC)Re: Inquiring minds want to know...
Date: 2001-01-03 11:21 am (UTC)Re: Inquiring minds want to know...
Date: 2001-01-03 11:22 am (UTC)slime
Date: 2000-12-30 03:16 am (UTC)Make your own slime at home! Fun for the whole family!
Slime, Where would we be without it? (http://www.newscientist.com/slime/slime.jsp)
(this article is interesting for it's description of a creature called the hagfish that can almost instantly turn a five gallon bucket of water into mucus like slime...as well as the fact that if they can master techniques that creatures like this use, they could make some amazingly strong things. Did you know that spiders still outwit science? They SORTA know how it makes it's thread, one of the strongest substances out there, but they can't, for all their science, replicate it? (if we could replicate spider silk, as strong as it is, you would be amazed at what we could build/create) Nature is the coolest thing.)
alex, who still buys store slime toys and guk and smud and floam and the like to play with....
ps sorry for the double post. lj cut off the last one because I forgot it's html based and used the brackets....
Re: slime
Date: 2000-12-30 02:00 pm (UTC)what great links! I like that modern physics has yet to work out why bees fly the way they do...
but synthetic spider silk is an amazing substance... read avout some nifty applications in scientific american over the years, it seems to be a recurring theme....