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ADH secretion is stimulated by increase in plasma osmolarity.
Example:ingestion of Na+ will cause the plasma osmolarity to increase and trigger the pituitary gland to produce ADH.
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∙ 13y ago
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∙ 13y agoWhen the amount of water in the blood gets low :)
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∙ 12y agohyperosmollarity, which is induced by dehydration
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∙ 11y agoOsmolar receptors responding to the hypertonicity of the blood.
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∙ 12y agoincreased plasma osmolality
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∙ 13y agoLow BP and/or hyperosmolality
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∙ 11y agoDehydration
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What two hormones stimulate production of all other sex hormones during adolescence?
ADH and MSH
What is ADH and how is its secretion controlled by negative feedback?
ADH is know as vassopressin and is produces by the hypothalamus and stored in the posterior pituitary. It is a peptide neurohormone of about 9 amino acids in length. ADH stands for anti diuretic hormone and prevents excess urine formation by reabsorbing water. When osmoteceptor cells in the hypothalamus senses an increase in osmolaritg in the ECF, SON and PVN cells are stimulated to secrete ADH. Also baroreceptors in the large arteries sense decreases in blood pressure and blood volume due to fluid loss. This also stimulus ADH secretion in order to conserve water. Interestingly, alcohol inhibits ADH secretion, therefore producing very dilute urine which stimulates thirst.
What are someTropic hormone?
ADH and TSH. are the examples of trophic hormones which produce in small quantity .
What is another name for an ADH test?
Antidiuretic hormone (ADH) test, also called the Vasopressin test, is a test for the antidiuretic hormone.An ADH test is used to aid in the diagnosis of diabetes insipidus or the syndrome of inappropriate ADH called SIADH.
State the function of the hormones ADH?
Anti-Diurtetic Hormone is a hormone used by your kidneys and determines how much water your body retains or excretes. It is made in the hypothalamus (homeostasis control center of sorts) and this hormone directly effects blood pressure and body water composition
What factors effect the ADH levels?
Various factors can affect ADH production.Certain drugs can either increase or decrease ADH levels.Physical stress, surgery, and high levels of anxiety can also stimulate ADH.diabetes insipidus.some tumors, especially of the lung.hypovolemia.
How does ecstasy affect ADH?
MDMA (ECSTASY) will increase ADH
What two hormones stimulate production of all other sex hormones during adolescence?
ADH and MSH
Why is oedema a symptom of kwashiorkor?
decrease protein intake ------> hypoalbuminemia ------>decreases oncotic pressure ---> increase capillary permeability ----> 1. decrease bl.volume and RBF leads to secretion of renin that stimulate aldosterone secretion and Na and water retention. 2. hemoconcenetration stimulate ADH production results in water retention.
When ADH is produced what happens?
If there is too little water in the blood, the hypothalamus will detect this and more ADH (Anti-Diuretic Hormone) will be produced. The increase in ADH will cause an increase in the permeability of the collecting duct in the kidney and so more water is reabsorbed into the blood. :)
The function of angiotensin II is to?
1. constrict arterioles thus increase blood pressure, 2. stimulate ADH secretion from the anterior pituitary which increases water retention by the kidneys and also increases blood pressure, and 3. stimulate aldosterone secretion from the adrenal cortex which increases sodium retention in the kidneys leading to more water retention by the kidneys and helping to increase blood pressure too.
What hormone would increase in the blood during dehydration?
Antidiuretic Hormone (ADH). • ADH helps to avoid dehydration or water overload - prevents urine formation
Is aldosterone released when someone is dehydrated?
No,ADH is released.It increase reabsorption of water.
What hormones increase blood volume and blood pressure and how?
aldosterone ADH
What does an increase in blood alcohol level do to your ADH?
An increase in in blood alcohol level will, if high enough, reduce the secretion of anti diuretic hormone (ADH), witch will in turn effect the kidneys ability to reasorb water in the tubules.
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
Is adh stimulated by another hormone the nervous system or humoral factors?
humoral
