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Difference between ADH and Aldosterone (1 Viewer)

Kristyn117

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What's the difference between ADH and Aldosterone? Or are they the same thing?
 

zingerburger

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ADH (vasopressin) increases the permeability of the collecting duct. This makes water reabsorption easier and changes the concentration of urine. It is produced in the hypothalamus and secreted from the posterior pituitary gland.

Aldosterone increases the reabsorption of sodium ions into the blood in the loop of Henle and distal tubes. Water follows by osmosis and increases blood pressure.
 

jannny

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Aldosterone also increases the salt level of the body as well right? as well as increasing the blood pressure.
 

xiao1985

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Yes, zingerburger did mention Aldosterone increases reabsorption of Na+ ions too.
 

Buiboi

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yeah i THINK that aldosterone is released when there is high levels or water and low levels of salts and ADH is released when there is low levels of water and high levels of salt...so its like one or the other, they're not secreted at the same time...i think
 

somewhereelse

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increased aldosterone is triggered by both low sodium and high potassium, and its release causes more sodium to be reabsorbed into the blood, and therefore more water by osmosis, = higher blood pressure
and vice versa, high levels of sodium/low pottasium in the blood reduces the release of aldosterone, reducing sodium reabsorbtion, reducing blood pressure..
& it comes from the adrenal cortex, which is above the kidneys (think, aldo kinda sounds like adrenal)
ADH (aka vasopressin) anti-DIURETIC-hormone, so you'll remember it has something to do with diuresis, which is loss of water from body. anti-diuretic is keeping water in- triggered by high solute concentration in the blood (essentially the same thing as low blood volume, because this means the solutes are more concentrated) as detected by the hypothalamus (control centre) hypothalamus triggers the pituary gland to release ADH which increases the permeability of the membranes in the kidney tubules, increasing water reabsorbtion in the loop of henle and distal tubules (where osmoregulation takes place)

i know it already got explained but regurgitating that is going to help me remember it :) hth!
 

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