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Question

How is the amount of urine produced regulated?


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Solution

Urine:

  1. Urine is made up of water, urea, minerals, and pigments in our bodies.
  2. The volume of urine generated is highly influenced by the amount of extra water or reabsorbed water, even in the body's dissolved waste.
  3. When there is an overabundance of water in the body, a large amount of dilute urine is expelled.
  4. When there is no excess water, a tiny amount of condensed pee is expelled.
  5. More water is predicted to be expelled in areas of the body where the amount of dissolved trash is higher.
  6. As a result, the amount of urine produced is growing.
  7. The amount of urine produced is also affected by the antidiuretic hormone (ADH) and the body's environment.
  8. Urine generation in human bodies is generally accomplished through three processes: glomerular filtration, reabsorption, and secretion.

ADH and Blood volume regulate urine production :

  1. When blood volume decreases, the pituitary glands release antidiuretic hormone (ADH).
  2. ADH operates on the nephron's distal convoluted tubules, enhancing water reuptake from the kidneys.
  3. As a result, the overall volume of urine generated will be reduced.
  4. Urine output is also affected by blood volume.
  5. When blood volume drops too low, it induces greater water reuptake in the distal convoluted tubules.
  6. When blood pressure rises owing to increased blood volume, the amount of water filtered out in the glomerulus rises as well.
  7. As a result, ADH and blood volume modulation both play a role in regulating the volume of urine generated.
Urinary System Part 3: Regulation of Urine Formation – The Biology Classroom

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