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Hormones affecting tubular reabsorption
a
14
Physiology
Graduate
03/07/2012
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Term
Aldosterone
 Definition
Acts in principal cells of late distal tubule and collecting duct. increases Na+ reabsorption, increases K+ secretion
Term
Angiotensin II, Norepinephrine
 Definition
acts primarily in the proximal tubule. increases Na+ and water reabsorption, increases H+ secretion
Term
Antidiuretic hormone (vasopressin, ADH)
 Definition
acts in principal cells of late distal tubule and collecting duct, inner medullar collecting duct. increases water reabsorption.
Term
Atrial natriuretic peptide (ANP, ANF)
 Definition
acts in distal tubule and collecting duct. decreases Na+ reabsorption
Term
Parathyroid hormone (PTH)
 Definition
in proximal tubule decreases PO4--- reabsorption. in thick ascending loop of Henle and distal tubule increases Ca++ reabsorption
Term
Increases Na+ reabsorption
 Definition
Aldosterone, Angiotensin II, Norepinephrine
Term
Increases K+ secrection
 Definition
Aldosterone
Term
Increases water reabsorption
 Definition
Angiontensin II, Norepinephrine, ADH
Term
increases H+ secretion
 Definition
Andiontensin II
Term
decreases Na+ reabsorption
 Definition
ANP
Term
decreases PO4 reabsorption
 Definition
PTH
Term
increases Ca+ reabsorption
 Definition
PTH
Term
Late distal tubule and collecting duct
 Definition
Aldosterone, ADH, ANP, PTH
Term
proximal tubule
 Definition
Angiotensin II, Norepinephrine, PTH
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