24. Hormones acting on kidney Flashcards Preview

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Flashcards in 24. Hormones acting on kidney Deck (7):
1

ANP - net effect

Na+ loss and volume loss ( increases GFR and Na filtration with no compensatry Na reabsorption )

2

which hormone preserve renal function ( GFR) in low - volume - states and how

Angiotensin II : 1. constricts efferent arteriole ( increases FF) 2. Na+ reabsorption in proximal and distal nephron )

3

aldosterone - secreted in response to

1. low blood volume ( via ATII)
2. high K+ concentration

4

aldosterone - effect on K+, Na+, H+

causes Na+ reabsorption, K+ secretopm amd H+ secretion

5

ADH is secreted in response to

1. High plasma osmolarity
2. low blood volume
3. angiotensin II action

6

PTH is secreted in response to

1. low plasma Ca2+
2. high plasma PO4-
3. low plasma 1.25-OH 2 D3

7

PTH generally causes in KIDNEY ( and area)

1. increase Ca2+ reabsorption in DCT
2. decrease PO4- reabsorption in PCT
3. Increases 1.25 OH 2 D production in PCT ( increases Ca2+ and PO4- absorption from gut via vitamin D)

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