Why should scuba divers come up slowly ?

Question

Why should scuba divers come up slowly ?

Answer 1

Because there is a difference in the pressure if you go down, every 10 meters is the same pressure as one atmosphere added, when the divers come up slowly is to avoid the emerging nitrogene in the blood that make you feel dizzy, but if you come up hastly, your blood pressure would kill you.

Answer 2

Because there is a difference in the pressure if you go down, every 10 meters is the same pressure as one atmosphere added, when the divers come up slowly is to avoid the emerging nitrogene in the blood that make you feel dizzy, but if you come up hastly, your blood pressure would kill you.

this is correct but the actual problem is that due to quick pressure change, your blood will heat up which causes your blood to boil, and due to the pressure if teh blood boils your veins pop. its basic thermodynamics of physics. due to this problem of pressure, it also causes the nitrogen in your blood to even out the concentration of nitrogen in blood which in turn  stops the nitrogen reaching your brain which stops dizzyness

Answer 3

Because if you dont you will die!!!

Answer 4

To off-gas nitrogen in the blood so the bubbles don't block circulation in your veins ... giving you the bends.

http://www.scubadiverinfo.com/2_physiolo...

Answer 5

When you go down, the pressure compresses the nitrogen into your bloodstream. As you come up, the pressure decreases, and the nitrogen expands. If you come up too fast you can get nitrogen bubbles in your bloodstream, and if they come up in the right spot, you could die. If you came up slower, the nitrogen slowly dissolves into you body.

Answer 6

so they don't get bends, which are air bubbles in the blood. you can die or be paralyzed from them.

Answer 7

If you are breathing compressed air, it is not pure oxygen but includes other gasses as well, including nitrogen.  As you go down, the water compresses everything, including your lungs and the gasses in them.  Under normal air pressure your blood absorbs very little, if any, nitrogen.  But under the weight of all that water above you when scuba diving, the nitrogen is much more easily absorbed into your blood.

So, after being under water for a while your blood has absorbed quite a bit of nitrogen.  This is kind of like the carbon dioxide in a bottle of soda-pop.  As the scuba diver ascends, its like taking the lid off the soda-pop.  At normal surface pressure the blood doesn't hold the absorbed nitrogen well, so it, just like the soda, fizzes.  This can be very bad for the scuba diver causing gas-embolism or the bends.  Painful, potentially fatal.

By ascending slowly, the scuba diver allows the nitrogen to 'off gas' very slowly and mostly through the lungs, so that the chances for anything bad happening is greatly reduced.  A rapid 'panic' ascent is very dangerous!  Slow ascents are safe ascents.

Answer 8

B CUZ IF THE PRESSURE IN THE DIFFERENT DEEPS OF THE WATER IF YOU COME UP FAST YOU CAN PUT PRESSURE ON YOUR BRAIN AND OTHER ORGANS AN LUNGS.