Explain why about 0.4 litre of water is lost as urine each day, even when a person is suffering from thirst du

Question

Explain why about 0.4 litre of water is lost as urine each day, even when a person is suffering from thirst due to water deprivation?

Answer 1

The kidneys need to excrete waste, so some urine has to be produced even if it is highly concentrated.. Also some is lost as sweat and in the faeces.

Answer 2

I'm not sure "0.4 litre of water is lost each day" is a hard-and-fast figure, but I get your point - no matter how dehydrated a person gets, their body still makes some urine. Well, that's not 100% correct, but it's close.

Making and excreting urine are processes that must take place in humans (and, in some form, in pretty much every animal) or the person will die. The reason is that nitrogen-containing molecules in the body - primarily protein - are always being processed into waste. Most of that waste is in the form of a compound called urea, which is toxic at high levels. Urea is made in the liver from the breakdown of nitrogen-containing molecules. The kidneys then filter out the urea, concentrating it in the fluid that flows into the bladder and eventually out of the body.

The body is made to adapt to competing demands. It must keep the concentration of urea below a certain level or the urea will poison the body. The body must also guard against losing water that is not being replaced quickly enough or at all. That's why the kidneys have the ability to make urine that is much more concentrated than normal - continuing the removal of urea while reducing the rate of water loss.

Sometimes in cases of severe dehydration, the kidneys shut down altogether and virtually no urine is produced. But whether that's a natural defense against dehydration or just the byproduct of true organ failure from dehydration and its consequences is something I don't know.

Answer 3

1st off, i'm not a physician, yet i'm a Paramedic and function been for 11yrs, and a medical sign of diabetes is intense thirst. i'm not asserting it truly is the respond on your issue, even though it does not harm to circulate see your ordinary surgeon and function your blood sugar checked to be on the secure area. additionally my grandmother strengthen right into a diabetic and that strengthen into one (intense thirst) of the main indications that her blood sugar strengthen into extra desirable. desire this facilitates, and that i certainly desire it truly is truly not the priority for you, yet your wellness is important, so i could definately get it appeared at. Take care!

Answer 4

there is water in your cells. the human body is 80% water. this water is processed the same way other water is processed into piss. your body never stops doing what it's supposed to do, unless something fails. it's like when you exercise if you're not getting your energy from food, your body is getting it from your own cells. they break down & that's how your muscles atrophy.