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Q: How does the brain tell the kidney how much water to reabsorb?
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What organ tells the kidney how much water to reabsorb?

The hypothalamus in the brain sends signals to the pituitary gland to release antidiuretic hormone (ADH) in response to changes in blood concentration. ADH then signals the kidney to reabsorb water, helping regulate the body's fluid balance.


How adh causes changes in the kidney tuble?

ADH, or antidiuretic hormone, works in the kidney tubule by increasing its permeability to water. This allows the kidney to reabsorb more water from the urine, leading to concentrated urine production. As a result, ADH helps regulate the body's water balance by controlling how much water is excreted in the urine.


What tubules of the kidney?

Tubules are the tubes running through each little (microscopic) nephrons within each kidney that aid in filtering and collecting of the waste products, and then depending on how much water is in the body it either can reabsorb more water or more salt depending on your electrolyte balance. :-D


What of the Kidneys?

Tubules are the tubes running through each little (microscopic) nephrons within each kidney that aid in filtering and collecting of the waste products, and then depending on how much water is in the body it either can reabsorb more water or more salt depending on your electrolyte balance. :-D


What does ADH make the kidneys do?

ADH, or antidiuretic hormone, helps the kidneys regulate the amount of water in the body by increasing the reabsorption of water in the kidneys. This results in less water being excreted in the urine, leading to concentrated urine and helping to maintain fluid balance in the body.


What tells the kidneys how much water to absorb?

Antidiuretic hormone ADH


Why does alcohol act as a diutertic?

Alcohol inhibits the release of antidiuretic hormone (ADH) from the pituitary gland, which normally helps the kidneys reabsorb water. Without ADH, the kidneys do not reabsorb as much water, leading to increased urine production and dehydration, making alcohol a diuretic.


How does kidney work as osmoregulatory organ?

I hope this helps :) Osmoregulation is the process by which body fluids are maintained at a constant level. In the kidney there are the Bowman's Capsule and also the loop of Henle which reabsorbs and filters the excess water, salt and urea. In the brain there are the hypothalamus and pituitary gland that controls the process of osmoregulation. The hypothalamus detects the changes in H2O level while the gland secretes Antidiuretic Hormone (ADH) into the blood stream. ADH is produced when H2O levels are low. This causes the loop of Henle and distilled convoluted tubule to reabsorb more H2O. The production of ADH stops when normal conditions are restored. When there is too much water the kidney will remove it and urine will become more dilute


How much water does the brain have?

70 %


Can water make your brain cells to grow?

Yes water can make your brain cells grow, but too much water will make your brain cells burst.


How much water is in you're brain?

your brain is 85% water but the amount in milimeteres or litres depends on the person


What tells the kidney how much water to re-absorb?

Antidiuretic hormone ADH