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Author Topic: Osmosis in Human Skin  (Read 13992 times)

Offline qazibasit

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Osmosis in Human Skin
« on: 22/07/2003 15:15:07 »
When we kept our hands in water for quite a long time then it becomes swallown it is just due to the osmosis which occurs in that interval.
« Last Edit: 02/09/2003 12:23:47 by NakedScientist »


 

Offline Exodus

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Re: Osmosis in Human Skin
« Reply #1 on: 22/07/2003 20:09:23 »
I thought hands shrivled up? or am i wrong?

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Offline bezoar

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Re: Osmosis in Human Skin
« Reply #2 on: 23/07/2003 05:46:58 »
Mine shrivel too.  Think there's something different about the water in Pakistan?
 

Offline chris

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Re: Osmosis in Human Skin
« Reply #3 on: 23/07/2003 10:18:26 »
This is a fantastic question.

Although the skin is an excellent physical barrier to chemicals and pathogens (including bacteria, fungi and viruses), it is not waterproof.

Extended immersion allows water to penetrate and to swell the dried out, dead, flattened cells in the uppermost layers of the epidermis. This pulls the skin into a series of ridges and folds which, paradoxically, make it look like your finger has shrivelled up like a prune. In fact the ridges and folds have a much greater area than a flat surface (that's why the human brain is covered in ridges, allowing more tissue to be packed in), accounting for the extra volume of water.

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Offline Exodus

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Re: Osmosis in Human Skin
« Reply #4 on: 23/07/2003 11:40:17 »
Wow thats amazing, never realised that!! What a brain teaser..... rorry about the pun!

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Offline bezoar

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Re: Osmosis in Human Skin
« Reply #5 on: 23/07/2003 16:48:28 »
Makes me wonder about moisturizing your face.  Would hate for it to end up looking like my fingers.
 

Offline Donnah

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Re: Osmosis in Human Skin
« Reply #6 on: 23/07/2003 17:21:34 »
Mine does, first thing in the morning sometimes!;)
 

Offline Quantumcat

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Re: Osmosis in Human Skin
« Reply #7 on: 24/07/2003 04:58:27 »
beozar, mosturizing cream is oil, not water so it wouldn't osmose (is that a word?) I think

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Offline bezoar

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Re: Osmosis in Human Skin
« Reply #8 on: 24/07/2003 05:59:33 »
Whew! Thank goodness!  Guess I can get my Oil of Olay out of the trash.
 

Offline John Q. Einstein

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Re: Osmosis in Human Skin
« Reply #9 on: 08/08/2003 15:29:28 »
Anyway, surely this is diffussion, not osmosis?  Unless the sun shining on your head speeds up the process...[:p]
 

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Re: Osmosis in Human Skin
« Reply #9 on: 08/08/2003 15:29:28 »

 

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