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Old 06-14-2018, 08:46 PM
RichardSRussell RichardSRussell is offline
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What's the Large Intestine Good For?

Why do we have a large intestine? The stomach and small intestine do most of the work of extracting nutrients from whatever we eat, leaving the (ahem) residue to be stored in the large intestine until we can find a convenient time and place to offload it. That certainly works well in the modern era of indoor plumbing, so yay for that, but what survival advantage did it impart during the millions of years of mammalian evolution to have to carry a load of crap around with us wherever we went?
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Old 06-14-2018, 08:50 PM
Joey P Joey P is offline
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Water is extracted from whatever passes through it.
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Old 06-14-2018, 09:02 PM
DSYoungEsq DSYoungEsq is online now
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To follow up on what Joey P said, the colon removes water from your digestive slurry exiting the small intestines. This is important, for at least a couple of reasons: it saves you from having to intake even more water than we do to stay hydrated, and it reduces the residue from our scat, which presumably is a positive survival trait.

In addition, the large intestines soak up a significant amount of vitamins from the chyme (that slurry I talked about), many of which are the by-product of bacteria in your large intestine attacking the chyme. So it's not accurate to think that all nutrients from digestion are absorbed by the small intestine.
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Old 06-14-2018, 09:15 PM
Exapno Mapcase Exapno Mapcase is online now
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In addition to the above, the colon contains large amounts of flora which are increasingly recognized as important to health.

Quote:
Research suggests that the relationship between gut flora and humans is not merely commensal (a non-harmful coexistence), but rather is a mutualistic, symbiotic relationship.[10] Though people can survive with no gut flora,[29] the microorganisms perform a host of useful functions, such as fermenting unused energy substrates, training the immune system via end products of metabolism like propionate and acetate, preventing growth of harmful species, regulating the development of the gut, producing vitamins for the host (such as biotin and vitamin K), and producing hormones to direct the host to store fats.[2] Extensive modification and imbalances of the gut microbiota and its microbiome or gene collection are associated with obesity.[34] However, in certain conditions, some species are thought to be capable of causing disease by causing infection or increasing cancer risk for the host.[9][28]
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Old 06-14-2018, 09:17 PM
nearwildheaven nearwildheaven is offline
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The main nutrient absorbed in the colon is vitamin K, which we do get from our diet but most of it is manufactured by colon bacteria. It does lots of other things too.

https://en.wikipedia.org/wiki/Large_intestine#Variation
  #6  
Old 06-14-2018, 09:25 PM
BobBitchin' BobBitchin' is offline
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ignorance fought, here

Thanx. I didn't even know I missed that week of health class.
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Old 06-15-2018, 02:31 AM
Delicious Delicious is offline
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It can also make a stylish scarf that is guaranteed to cause a stir, even in the fanciest of restaurants.
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Old 06-15-2018, 03:42 AM
Dereknocue67 Dereknocue67 is offline
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Quote:
Originally Posted by Delicious View Post
It can also make a stylish scarf that is guaranteed to cause a stir, even in the fanciest of restaurants.
Does one leave it attached to the small intestine? I wish to avoid a serious social faux pas whilst dining.
  #9  
Old 06-15-2018, 04:39 AM
DavidwithanR DavidwithanR is offline
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Originally Posted by Dereknocue67 View Post
Does one leave it attached to the small intestine? I wish to avoid a serious social faux pas whilst dining.
Yeah, get it wrong and you could be in deep... trouble.
  #10  
Old 06-15-2018, 04:59 AM
TriPolar TriPolar is offline
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Soylent Green Summer Sausage
  #11  
Old 06-15-2018, 05:55 AM
Grrr! Grrr! is offline
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So when one gets diarrhea, does that mean the LI isn't doing its job?
  #12  
Old 06-15-2018, 06:55 AM
kayaker kayaker is online now
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Originally Posted by Grrr! View Post
So when one gets diarrhea, does that mean the LI isn't doing its job?
There are small bowel diarrheas (enteritis) and large bowel diarrheas (colitis). Things get broken down further by the mechanism (for example secretory).
  #13  
Old 06-15-2018, 06:57 AM
Bullitt Bullitt is offline
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Sounds like a bunch of shit to me.
  #14  
Old 06-15-2018, 07:16 AM
Textual Innuendo Textual Innuendo is offline
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Originally Posted by Delicious View Post
It can also make a stylish scarf that is guaranteed to cause a stir, even in the fanciest of restaurants.
Fashion! This guy gets it, right down to the sublime nuances and details.
  #15  
Old 06-15-2018, 08:42 AM
Jackmannii Jackmannii is offline
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The colon has a vital role in supporting supplement pushers and other woo promoters who make $$$ convincing people that it's full of toxins and must be "detoxified". Beware: "death begins in the colon"*.

Reminds me of the pioneering quack who said one vital purpose of the spine was to support the chiropractor.

*favorite line in the article: "the colon cleanse program is not all roses and sunshine".

Last edited by Jackmannii; 06-15-2018 at 08:44 AM.
  #16  
Old 06-15-2018, 10:58 AM
Llama Llogophile Llama Llogophile is offline
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Without your intestines you'd be unable to digest. Then you'd look a bit of a fool, wouldn't you?
  #17  
Old 06-15-2018, 03:42 PM
Doctor Jackson Doctor Jackson is offline
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And in pigs, they are good for chitterlings (for certain definitions of "good").
  #18  
Old 06-15-2018, 03:46 PM
jayjay jayjay is offline
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o/` GUT! Huh! Good god, y'all!
What is it good for?! o/`
  #19  
Old 06-15-2018, 06:50 PM
nearwildheaven nearwildheaven is offline
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Quote:
Originally Posted by jayjay View Post
o/` GUT! Huh! Good god, y'all!
What is it good for?! o/`
I wonder if ZDoggMD has ever done this as a parody.

http://zdoggmd.com/
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