Talk:Small intestine

Transport of nutrients
Glucose and fructose are absorbed from the gut by facilitated transport, not by diffusion. The transporters in question are SGLT1 and GLUT5. In addition, water is thought to be co-transported by SGLT1. Water uptake increases in the presence of glucose - passive diffusion cannot explain this.

124.148.249.157 (talk) 02:43, 21 August 2011 (UTC)

Total length is incorrect
The length of the small intestine probably isn't as long as the article suggests. Biology by Raven and Johnson states that the length of the small intestine is 4.5m in a living person and 6m in a long at autopsy because the muscles relax upon death. - Mahela

EDIT: I changed the length from 7 to 4.5 m. —Preceding unsigned comment added by Mahela007 (talk • contribs) 18:41, 30 December 2009 (UTC)


 * Currently the article suggests a very short small intestine (3 meters?) and no source is given. The comments above mention a source, however I cannot find the source to confirm this. However, according to Gray's anatomy, the small intestine is about 7 meters long. Moreover, according to "Surgical Applied Anatomy" by Frederick Treves, of one hundred consecutive cases, the average length of the small intestine in the adult male was 22 feet 6 inches, and in the adult female 23 feet 4 inches: but that it varies very much, the extremes in the male being 31 feet 10 inches, and 15 feet 6 inches. Thus, I believe that the current length given in the article is wrong. I am going to edit the article accordingly. Puhlaa (talk) 14:32, 2 September 2011 (UTC)


 * I found a scientific reference for the 3.5 metter length: . I'm waiting for any consideration before including it in the article as a reference, leaving both traditional length and new shorter. --faregran — Preceding unsigned comment added by 62.81.190.65 (talk) 16:57, 2 December 2014 (UTC)

add histology
can someone please add the histology of the stomach / other digestive systems? hi, my name is Nadyn and i am 12. I am just wondering how long food stays in the small intestine??? when the food reaches the small intestine, i know everything but how long it stays in there for?? because i have a summary i have to do... please help! xx thanks stomach is a dilated part of alimentry canal.it is a J-shaped located beneath diaphrgm.herefood stays for 22 hours — Preceding unsigned comment added by 119.154.112.141 (talk) 16:39, 31 October 2013 (UTC)

this is not a tutoring/homework-assist site. please refrain from spamming wikipedia with your homework requests in the future. Lesotho 17:29, 13 October 2006 (UTC)

The small intestine is 20ft long, not about 9ft. I don't know what the sources are, but Snell's Clinical Anatomy(and numerous web SOurcees) state that it is abotu 20ft long.


 * You're right...the lengths stated for the overall small intestine and the three structural parts that comprise it were way off. I've corrected the lengths. 69.110.155.206 09:31, 4 December 2006 (UTC)

I would also like to know how long food stays in the small intestine. I am not doing homework just courious : )) Cathie

Intestine
Ok, I'm really sorry. I didn't realise this article existed so i went full steam ahead and did the intestine article. However i think all my info on the general layout of the gut with mucosa, muscularis externa etc can be salvaged for use in this article or another. Plus i did a good bit on facilitated diffusion of glucose in the ileum. Sorry again I'm a complete newbie. Please just consider what i said. Crabulon 23:57 GMT

well, your article is certainly informative and i think that both the 'intestine' and 'small intestine' articles complement one another. the bad news is, however, that they now need to be merged. the combined article should be a big improvement over any of the individual articles, i believe. Lesotho 00:16, 9 June 2006 (UTC).


 * That's OK but yourself too busy at all so no rush 58 2A00:23C7:8F0C:5101:BC0F:7BAB:F9B6:626D (talk) 13:56, 26 November 2023 (UTC)

vandalism
the main article has been vandalized...can some admin please lock it temporarily and reverse the spam? Lesotho 19:52, 15 October 2006 (UTC)

Jobs
Why is the small intestine good at doing its job? I was just trying to find out as much as possible about it.

Change length of sections to ratios?
Since the length isn't always the same, shouldn't the length of each section be a percentage or fraction? Crazydog115 05:21, 22 February 2007 (UTC)this page is so cool i needed this page so much. well, Iam only trying to find the latin (or is it greek?) name of the SMALL INTESTINE, I mean, "colon" shows up all the time, but not small intestine.. —Preceding unsigned comment added by 201.153.16.10 (talk) 01:35, 24 January 2009 (UTC)

Can someone put more usable info?
$$Insert formula here$$

Organization
I think that I've made some fair improvements to this article (from this to this), but I've just about taken it as far as I can, given my limited knowledge of the subject. I leave it to others; it does appear to me to need some improvements to the content still. Un sch  ool  05:55, 10 December 2008 (UTC)

Major reorganization and consolidation
After finding a number of recent edits that consisted of vandalism or uninformative observations, I initially planned to simply remove these. But close reading for those kinds of problems revealed that the page contained a lot of repeated information (e.g., villi described at least three times) and was not well organized. I changed the organization to more of a "classic" anatomy and physiology arrangement and eliminated redundancies as I went. I also made a few additions and corrections when needed.

Some additional details would be useful in some areas, as would a diagram of the intestinal mucosa. I will try to work on this more in the future.

As Lesotho noted in October 2006, this page does seem to suffer a lot of vandalism and useless entries!

--AJC (talk) 06:45, 25 March 2009 (UTC)

New Transverse Image
Re: edit 21:09 7 December 2011‎

I'd like to call into question the educational value of the image added in this edit. 1) Judging by the presence of the umbilical vein and the lack of ossification of the vertebral body, this is a section from a fetus. The fact that it's not labeled as such could be misleading to some readers because of the presence of the umbilical vein and the irregular appearance of the transverse colon (In adult humans, an anatomically normal transverse colon would not pass in and out of a transverse plane five times - see this). 2) The level of the section (which plane of the abdomen it represents) is not indicated. 3) (Maybe this belongs on the image talk page?) The arrow for the "Small Intestine" label is actually pointing to the mesentery. To anyone who will the defend the picture: why should this picture be included in the article? NeuroE (talk) 04:52, 15 December 2011 (UTC)

pH of the small intestine
How about including that the intestine is roughly basic, as it best suits digestive enzymes. it is in contrast with the stomach which is acidic. Important science 129.180.166.53 (talk) 06:30, 9 June 2012 (UTC)

length of intestine
In many books the length of small intestine is given 6 m is it incorrect Prajwal Malame (talk) 07:47, 17 January 2016 (UTC)
 * Seems to be taken as a good 'average'. --Iztwoz (talk) 08:29, 17 January 2016 (UTC)

Article shouldn't focus on humans
Because it is not an organ of mainly humans. One section should be for humans, maybe others for specific animals if they are significantly different, and the article overall should be about small intestines as an organ of the animals who have it. Thinker78 (talk) 06:52, 11 September 2017 (UTC)

Science
3conversions that takes place in small intestine 39.42.176.44 (talk) 15:46, 29 August 2022 (UTC)