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  4. Sweat Versus Tears ( A salty question)
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Sweat Versus Tears ( A salty question)

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Offline neilep (OP)

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Sweat Versus Tears ( A salty question)
« on: 05/10/2007 15:49:27 »
Dear Peeps,

See this lady ?

 [ Invalid Attachment ]

Shame isn't it ?...She's heard some bad news !!...I'm not available !!

See this other lady ?

 [ Invalid Attachment ]

She's all hot and bothered after seeing a piccy of me !!

What I would like to know though...is what is the difference of salinity between tears and sweat ?

...and how do they compare to sea water salinity ?







* tears.jpg (4.37 kB, 133x102 - viewed 6101 times.)

* sweat.jpg (2.91 kB, 118x105 - viewed 6132 times.)
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Offline RD

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Sweat Versus Tears ( A salty question)
« Reply #1 on: 05/10/2007 16:41:57 »
.
 [ Invalid Attachment ]
Her tears aren't salty, the're made of glass ...
http://www.getty.edu/art/gettyguide/artObjectDetails?artobj=44253
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Sweat Versus Tears ( A salty question)
« Reply #2 on: 05/10/2007 17:21:56 »
grrrrrrrrrrrr !!!! [::)]

what about these tears then ? [:-'(] [:-'(] [:-'(] [:-'(]
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Offline Karen W.

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Sweat Versus Tears ( A salty question)
« Reply #3 on: 05/10/2007 19:54:42 »
OHhhhh THERE THERE LITTLE SHEEPIE.. don't cry!
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Offline Andrew K Fletcher

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Sweat Versus Tears ( A salty question)
« Reply #4 on: 06/10/2007 08:15:19 »
Why is it that tears and sweat are salty? how does the salinity increase? How come there is a lot of salt in semen also? How does it arrive in the semen? What about the salinity in the nasal passage? Or the salinity of saliva? How is it concentrated?

There is alos salt in the lungs.

Chloride shift
From Wikipedia, the free encyclopedia

Chloride shift is a process which occurs in a cardiovascular system and refers to the exchange of bicarbonate (HCO3-) and chloride (Cl-) across the membrane of red blood cells.[1] Carbon dioxide (CO2) generated in tissues enters the blood and dissolves in water in the red blood cells to form carbonic acid (H2CO3), which then dissociates to form bicarbonate (HCO-3) and a hydrogen ion (H+). When carbon dioxide levels fall as the blood passes through the lungs, bicarbonate levels fall in the serum and bicarbonate moves out of the red blood cells. To balance the charges when bicarbonate exits the cell, a chloride anion from the plasma enters the red blood cell when the bicarbonate anion leaves. Reverse changes occur in the lungs when carbon dioxide is eliminated from the blood. Here, the exchange of bicarbonate for chloride in red blood cells flushes the bicarbonate from the blood and increases the rate of gas exchange.[2] This chloride shift may also regulate the affinity of hemoglobin for oxygen through the chloride ion acting as an allosteric effector.[3]
http://en.wikipedia.org/wiki/Chloride_shift
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