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Why does urine volume decrease as the gradient concentration increases?
As the concentration gradient increases, more water is reabsorbed by the kidneys, leading to concentrated urine with lower volume. This allows the body to conserve water and maintain proper electrolyte balance.
Does Antidiuretic hormone inhibits urine production and promote water reabsorption by the kidney?
NO. it increases the permeability of the cells lining the collecting duct via the insertion of Aquaporin 2. This increases the volume of water that is reabsorbed resulting in a concentrated urine. Urine is still produced but not a great amounts.
How does urine differ from the original filtrate?
From the original filtrate, a lot of much needed electrolytes (Sodium e.t.c) are reabsorbed (absorbed back into blood), a few substances secreted further into the urine, then loads of water reabsorbed to fine tune body water to exactly how much you need(as much as possible), making urine far more concentrated than the original filtrate.
Is water concentration in urine the same as glomerular filtrate or greater?
The water concentration in urine is generally lower than that in glomerular filtrate. During the filtration process in the kidneys, glomerular filtrate contains a high concentration of water, but as it passes through the renal tubules, water is reabsorbed, leading to a more concentrated urine. Therefore, urine typically has a higher concentration of solutes and a lower concentration of water compared to the initial glomerular filtrate.
Neurohypophyseal secretion of stimulates formation of concentrated urine?
The neurohypophyseal secretion of ADH (antidiuretic hormone) promotes water reabsorption in the kidneys, leading to the formation of concentrated urine. ADH acts on the collecting ducts of the nephrons in the kidneys to increase their permeability to water, allowing the body to conserve water and produce concentrated urine.
When the level of ADH increases does less water get reabsorbed by the nephron and collecting duct?
No, when the level of antidiuretic hormone (ADH) increases, more water is reabsorbed by the nephron and collecting duct. ADH enhances the permeability of the collecting ducts to water, allowing more water to be reabsorbed back into the bloodstream. This results in concentrated urine and reduced urine volume. Thus, increased ADH leads to less water being excreted.
Why doesn't a kangaroo rat produce urine?
they do produce urine, but in small amount and more concentrated. they dont drink water and obtain water from their food such as grass, vegetables,insectes. they have extreme long Loop of Helen in their nuphrons in kidneys, this allows more water molecules can be reabsorbed, as the water moves back to the bloodstream, the concentrated and small amount of urine is formed
Why does urine volume decrease as the gradient concentration increases?
As the concentration gradient increases, more water is reabsorbed by the kidneys, leading to concentrated urine with lower volume. This allows the body to conserve water and maintain proper electrolyte balance.
Which hormones is most likely to cause production of a concentrated urine?
Antidiuretic hormone(ADH) reabsorbs water from the collecting tubules of the kidney causing urine to become concentrated.
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.
Does Antidiuretic hormone inhibits urine production and promote water reabsorption by the kidney?
NO. it increases the permeability of the cells lining the collecting duct via the insertion of Aquaporin 2. This increases the volume of water that is reabsorbed resulting in a concentrated urine. Urine is still produced but not a great amounts.
How does urine differ from the original filtrate?
From the original filtrate, a lot of much needed electrolytes (Sodium e.t.c) are reabsorbed (absorbed back into blood), a few substances secreted further into the urine, then loads of water reabsorbed to fine tune body water to exactly how much you need(as much as possible), making urine far more concentrated than the original filtrate.
which nephron structure must be regulated by hormones in order to form concentrated urine?
The nephron structure that must be regulated by hormones to form concentrated urine is the collecting duct. Antidiuretic hormone (ADH), also known as vasopressin, acts on the collecting duct to increase its permeability to water, allowing more water to be reabsorbed back into the bloodstream. This regulation is crucial for maintaining water balance and producing urine with a higher osmolarity.
What molecule is reabsorbed from the collecting duct so that urine becomes hypertonic?
water
How can one make urine more concentrated?
To make urine more concentrated, drink less water and consume foods high in salt and protein. This will reduce the amount of water in the body, leading to more concentrated urine.
Is water concentration in urine the same as glomerular filtrate or greater?
The water concentration in urine is generally lower than that in glomerular filtrate. During the filtration process in the kidneys, glomerular filtrate contains a high concentration of water, but as it passes through the renal tubules, water is reabsorbed, leading to a more concentrated urine. Therefore, urine typically has a higher concentration of solutes and a lower concentration of water compared to the initial glomerular filtrate.
Is water reabsorbed or excreted through the urine?
Water (e.g. a mixture of fluid) is excreted through the urine.Fluids are reabsorbed from the large intestines and then shuttled to the kidneys. The kidneys process fluids for excretion.
