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Post details Post   (Contract pics)
Mountain Rescue Te.. by simon3   (Show all posts)
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jackill
2011-08-20 08:57:20
"little steps" from jackill Contract pics
Picture: little steps (Contract pics)
Stop walking on your hands Dessie
found the explanation below on yahoo answers

In your body, there are two main "compartments" of fluid. The fluid that is in your tissues such as skin, muscles, organs..etc and the fluid that is in the blood. Fluid is continuously moving between the two compartments. There is a balance in this fluid movement to make sure that too much does not move in one direction. If too much moves towards the tissues, then you have swelling of the tissues. If too much moves into the blood, then you have almost no skin tightness (turgor).

To simplify things, the things that control the net movement of fluid between the compartments are:

1. Proteins and salts in the blood (pulls the water back from the tissues due to the osmotic gradient)
2. Proteins and salts in the tissues (pulls water into the tissues from the blood)
3. Blood pressure (pushes water into the tissues)

If these are altered, then you get a shift of fluid from one compartment to the other.
e.g.
if the blood pressure increases then more fluid moves into the tissues than moving out.
if you have less proteins and salts in the blood, then more fluid moves into the tissues than moving out.
if you have too much protein and salt in the tissues, then more fluid will again move into the tissues than moving out.

When you exercise, you will have a higher blood pressure because the heart is pumping much harder to get more blood around the body. This higher blood pressure may increase the amount of fluid that is moving into the tissues. Furthermore, when you sweat, you lose salts. Fewer salts in the body may also lead to more fluid moving out of the blood and into the tissues. Furthermore, the blood vessels tend to dilate in order to lose heat, this causes a higher surface area inside the blood vessel which may increase the diffusion out of the blood. Why this occurs in some people and not others may be related to disease (high BP and low proteins and salts in blood), or it may be related to the poor circulation (Blood moves out of the limbs and back to the heart slower than blood going to the arms causing a "traffic jam" and increasing the "local blood pressure"), and in some people, it is normal and may be related to just the way their body is built.
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RECENT CONTRIBUTIONS 1 2 3 .. 23 Next page >>
Summit Comment
Stockeen Cliff Top: Coastal Hill
sandman a day ago.
Located adjacent to the cliff walk accessible via the Cliffs of Moher Center. Best to enjoy the full walk rather than just summit bagging but for your added enjoyment the earlier in the morning yo...

  
Summit Comment
Lislorkan Top: Coastal Hill
sandman a day ago.
Accessible via the Cliffs of Moher Visitor Center and car park or via other locations on this coastal walk of your choosing. Best to enjoy the full length of this fantastic cliff walk.

  
Summit Comment
Knockardakin: Coastal Hill
sandman 2 days ago.
Located adjacent to the world renowned Cliffs of Moher,and although this is the hill which the visitor center is built into, the summit is not located in a public area. Access is via a farm gate o...

Summit Comment
Corduff: My wee dander to the summit
Ulsterpooka 3 days ago.
I followed Muschi's and Paddyhilksbagger route. When going to the trig I moved on a few cows before I walked to the trig. After taking a few pics I seen the large brown bull in the field was block...

  
Track
Inishowen Slieve Snaght from the north.
simon3 5 days ago.
This linear walk route starts from the north and includes the two Arderins and one Vandeleur-Lynam in the area. It sta... walk, Len: 9.3km, Climb: 515m, Area: Slieve Snaght, Inishowen (Ireland) Sliev

  
Track
Cruach Eoghanach
Peter Walker 6 days ago.
Cruach Eoghanach is a handy outing on the days when you get out of the car, feel the force of the wind and rain, look... walk, Len: 10.4km, Climb: 329m, Area: Cruach Eoghanach, S Donegal/W Tyrone (Ir

Summit Summary
Slieve Main: Inishowen's second mountain.
Collaborative entry Last edit by: simon3 5 days ago.
Parking in a small quarry 3km to the east at point C444 372, cross the smaller top of Damph and then head north, curving around the valley until you cross a fence at C425 380 then begin to ascend ...

  
Forum: Suggestions
Clare Coastal Hills
simon3 3 days ago.
We have added 14 Coastal Hills for Clare today. Intriguing names like Stockeen Cliff Top, 185mJust to remind. A Coastal Hill is a hill of at least 50m with a drop from the top or prominence of 20m...

  
Track
Arona to Parador Hotel via Valle de Ucanca
GSheehy 3 days ago.
Sticking the boots in the bag, when the intention was to go and have a rest.Justifying a walk, that?s predominantly as walk, Len: 30.8km, Climb: 2274m, Area: Spain, Canary Islands ()

Track
Pics de Batoua
David-Guenot a week ago.
walk, Len: 18.3km, Climb: 1672m, Area: France, Occitanie ()

  
Summit Comment
Castlemahon Mountain: My outing to Castlemahon summit.
Ulsterpooka a week ago.
I followed Peter Walkers route and asked permission to walk to the summit mast. The person was very friendly and accommodating. I parked at the last house in what is a four house dwelling lane. Th...

  
Track
Amalfi: Ravello to Minori
Onzy a week ago.
walk, Len: 3.5km, Climb: 12m, Area: Italy, Campania ()


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