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hypothalamus
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∙ 15y ago
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Does ADH release posterior pituitary?
yes ADH is realsed by posterior pituitary
High level of adh would be found in someone who has?
electrolyte
What does the posterior pituitary gland control?
ADH secretion and oxytocim release
What stores ADH?
adh is stored and secreted by the posterior pituitary
What are the two hormones that are produced in the hypothalamus but stored in the pituitary?
Oxitocin, and ADH
How does the hormone ADH control urine volume and concentration?
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
Does ADH release posterior pituitary?
yes ADH is realsed by posterior pituitary
What stimulates the release of ADH?
The concentration of solutes in the blood stimulates the release of ADH or antidiuretic hormone. This is referred to as the plasma osmolarity.ADH releasing factor
High level of adh would be found in someone who has?
electrolyte
What hormone release from the hypothalsmus?
thyroid
Why is it important that people release more ADH when they sweat?
Because ADH controls blood water level by triggering the uptake of water in kidneys.
What will the kidneys do when increased osmolarity causes the pituitary to release ADH?
draivenarca
Drinking alcohol produces its diuretic effect by?
Inhibiting the release of ADH
How do alcohol and caffeine exert diuretic effects?
Inhibition of ADH release
What does the posterior pituitary gland control?
ADH secretion and oxytocim release
What triggers ADH?
the high osmolarity of blood acts upon the osmoreceptor of hypothalmus cause the release of adh low plasma volume increase plasma cholecystokinin
What is the mechanism of action that makes alcohol a diuretic?
Yes. Alcohol inhibits anti-diuretic hormone (ADH) release in your brain. ADH aids in water reabsorption in the kidneys, so when ADH release is inhibited by alcohol your body cannot retain as much water so you will urinate more which can lead to dehydration.
