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Adh

Adh --> antidiuretic hormone

(Science: endocrinology) a peptide hormone released from the posterior pituitary lobe but synthesised in the hypothalamus. There are 2 forms, differing only in the amino acid at position 8: arginine vasopressin is widespread, while lysine vasopressin is found in pigs. Has antidiuretic and vasopressor actions. Used in the treatment of diabetes insipidus.

Acronym: adh hormone secreted by the posterior pituitary gland (trade name Pitressin) and also by nerve endings in the hypothalamus; affects blood pressure by stimulating capillary muscles and reduces urine flow by affecting reabsorption of water by kidney tubules.Hormone secreted by the posterior pituitary gland (trade name Pitressin) and also by nerve endings in the hypothalamus; affects blood pressure by stimulating capillary muscles and reduces urine flow by affecting reabsorption of water by kidney tubules.Common acronym standing for anti-diuretic hormone which is used for osmoregulation in animals. High concentrations of adh promote the re-absorption of water (and other compounds) in the kidney, via making the kidney tubules more permeable to water.


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Human Pathology 'Multiple-Choice Questions'

... of oxytocin than those prior to the hemorrhage. b. higher plasma levels of ACTH than those prior to the hemorrhage. c. higher plasma levels of ADH than those prior to the hemorrhage. d. lower plasma levels of LH than those prior to the hemorrhage. e. higher plasma levels of TSH than those prior ...

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by ScrimmSphere
Mon Feb 04, 2013 11:03 am
 
Forum: Human Biology
Topic: Human Pathology 'Multiple-Choice Questions'
Replies: 1
Views: 3365

Re: Urine formation

... the urine depend on the permeability of the walls of the collecting duct. When the blood osmotic pressure increases, as duringg dehydration, more ADH is released from the pituitary gland. ADH increases the permeability of the collecting duct probably by expanding the size of pores of the walls ...

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by chikis
Mon Nov 14, 2011 12:35 pm
 
Forum: Physiology
Topic: Urine formation
Replies: 7
Views: 5574

Urine formation

E is incorrect. The functions of antidiuretic hormone, as the name implies, serve to prevent water loss and dehydration, and therefore ADH will reabsorb sodium from the distal tubule, and water will follow by osmosis. Therefore, in the control of ADH, concentrated urine is produced, not dilute ...

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by aptitude
Wed Nov 09, 2011 2:51 am
 
Forum: Physiology
Topic: Urine formation
Replies: 7
Views: 5574

Re: discussion topics for genes and fidelity?

... never had such a discussion in any science class. First of all, my view is that this pill is a bad idea considering the fact that vasopressin (ADH) is primarily involved in maintaining blood volume. If ADH receptors are up-regulated, it may result in high blood pressure. The ethical part of ...

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by aptitude
Tue Oct 04, 2011 6:36 am
 
Forum: Genetics
Topic: Help for discussion topics for class debate?
Replies: 2
Views: 3295

Kidneys and permeability to urea

Hi Which part of the nephron would be permeable to urea? is it last part of the DCT and collecting duct? And is it regulated by the ADH hormone? Is this the only part where urea is reabsorbed and carried into meddula? Oh I am so confused here, permeable, not permeable, poorly permeable Please ...

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by snezka18
Wed May 11, 2011 10:27 am
 
Forum: Human Biology
Topic: Kidneys and permeability to urea
Replies: 1
Views: 3005
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