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Actually we just got through that section here in Nursing School.
The lower bowel ( the colon) does absorb excess water from food. However, it is not by some magic process. There are not little guys in there pumping water through the colon wall. It is by passive osmosis only. By definition osmosis moves water from an area of lesser solute concentration to one of greater concentration. Since sea water has a higher gradient of salt, water would go in that direction no matter which end of the alimentary canal you were using. Clear enough? -- Dennis Gibbons dkgibbons at optonline dot net "AC" wrote in message ... You don't seem to understand how the lower bowel works. Try researching it, and you will understand. The part of the bowel before the anus re-hydrates the body through re-absorbtion. It does this by several means to which "JAXAshby", for one - would not even have a clue. "Dennis Gibbons" wrote in message t... The problem is that since sea water has a higher salt concentration than the body, if water could travel through the skin, it would LEAVE the body. Water follows salt (let's hear it for countercurrent multiplication in the loops of Henle) -- Dennis Gibbons dkgibbons at optonline dot net "JAXAshby" wrote in message ... KNOCK IT OFF, YOU IDIOT!!!!!!!!!!!! you know not a thing you are talking about. a seawater enema is JUST AS DANGEROUS as drinking seawater. Idiot. geesus kriste!! From: "AC" Date: 8/29/2004 5:56 AM Eastern Daylight Time Message-id: You'd be much better off giving yourself an enema with it, than sitting in it. Several cases of extended survival at sea without drinking, using seawater enemas have been reported. "KimDalkin" wrote in message ... I just finished ready Jack London's "South Sea Island Tales". In it he descibes Islanders preventing dehydration by sitting in sea water. A hurrican had just destroyed the islands drinking water. He describes it relieving thirst, though not getting rid of it entirely. I spoke to a doctor friend of mine, and he thinks its pluasible. The density of salt in the body is just slightly less than sea water. If severely dehyrated, then reverse osmoosis would occur, and water would pass through the skin back into the body. Does reverse osmosis occur? If so, should the Ancient Mariner of jumped into the sea, instead of watching the boards shrink? Kim |
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