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8 Cards in this Set

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Aldosterone
Increases Na+ reabsorption in Principal cells
Angiotensin II
(1) Efferent and systemic vasoconstriction

(2) Increases H20 reabsorption
Urodilitin
Inhibits CD medullary NaCl and H2O reabsorption
Secreted by DT and CD

More potent than ANP
ANP
Atrial natriuretic peptide

Inhibits medullary NaCl reab
Inhibits ADH-med H2O reab
Red Post-Pit ADH secretion
Activates guanylyl cyclase, increasing cGMP
Uroguanylin and
Guanylin actions
Oral NaCl stimulates intestinal neuroendocrine cells

Inhibits renal H2O/NaCl reabs
Activates guanylylcyclase, increasing cGMP
Dopamine actions
Secretion stimulated by increased ECF

Reduces PT H2O and NaCl reab
From dopaminergic neurons and PT cells
Adrenomedullin
Stimulated by HTN and CHF

Increases GFR and RBF
Stimulating NaCl/H2O excretion
ADH
Increases CD permability to H2O
Secreted by post-pituitary when osm increases >1% or ECF decreases > 5-10%