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adh controls the volume of urine by regulating the amount of water absorbed into the convoluted tubules. . At some point ,change in blood level activates the osmoreceptors in the hypothalamus which in turn activates the release of antidiuretic hormone(ADH). ADH is released into the blood stream, then it travels to the kidney's collecting ducts whilst in the kidney, ADH increase the number of water channels in the membrane of the collecting duct cells ADH binds to the cell membrane receptors to activate phosphorylase enzyme. This causes the vesicle containing aquaporins to fuse with the membrane. Therefore water is reabsorbed from the filtrated to produce concentrated urine which passes into the tubules, collects in the renal pelvis and flows through the ureters into the urinary bladder. The reabsorbed water increases the water potential of the blood, osmoreceptors are no longer activated and so ADH production stops. This is an example of negative feedback response consequently, their removal is accompanied by an unavoidable water loss
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What happend to the volume of urine as the solute concentration in the interstitial space was increased?
As the solute concentration in the interstitial space increases, the volume of urine produced by the kidneys typically decreases. This is because the higher solute concentration triggers the release of antidiuretic hormone (ADH), which increases water reabsorption in the kidneys, leading to a decrease in urine volume.
What effect does salt intake have upon urine salt concentration and volume?
The renal system (kidneys) is the main regulator of both blood volume and blood salt concentration, but the two factors are regulated somewhat independently of each other as both the volume of urine produced and it's salt concentration vary with their own hormone system.
What is the concentration of urine is controlled by?
Anti-diuretic hormone
What happened to the urine volume as the concentration gradient increased?
As the concentration gradient increases, the urine volume typically decreases. This is because a higher concentration gradient drives more water reabsorption in the kidneys, resulting in a lower urine volume being produced.
What happen to urine volume if you did not add ADH to the collecting duct?
Without the presence of antidiuretic hormone (ADH), the permeability of the collecting duct to water decreases. As a result, more water is excreted in the urine, leading to a higher urine volume and lower urine concentration.
When Antidiuretic hormone is present urine concentration equals interstitial fluid concentration?
True
What controls the volume of urine?
antidiuretic hormone (ADH)
How does Aldosterone influence urine concentration an volume?
Aldosterone is a hormone produced by the adrenal glands that regulates sodium and potassium balance in the body. It promotes the reabsorption of sodium in the kidneys, which leads to the retention of water, thereby increasing urine concentration and reducing urine volume. As sodium is reabsorbed, water follows osmotically, resulting in less dilute urine. Additionally, aldosterone helps to excrete potassium, further influencing fluid balance and urine characteristics.
The hormone that signals that kidneys to make less urine is?
ADH is the hormone regulate the volume of urine. It is produced by the hypothalamus. It secreted by anterior pituitary.
What hormone signals the kidney to make less urine?
That hormone is called ADH or antidiuretic hormone. Diuresis means producing urine and antiduresis is the opposite.
How does ADH affect the concentration of potassium in urine?
ADH, or antidiuretic hormone, increases water reabsorption in the kidneys, leading to more concentrated urine. As water is reabsorbed, the concentration of solutes in the urine, including potassium, increases. Therefore, ADH indirectly affects the concentration of potassium in urine by influencing the overall concentration of solutes.
What are the effects of hyper secretion of ADH in urine quantity and component?
ADH is short for Anti Diuretic Hormone and it prevents excess water loss. As such, a hyper-secretion of ADH will result in less urine by volume, and the urine will have a lower concentration of water. Conversely, it will have a higher concentration of solutes (Sodium, Potassium, Urea, etc.)
