Infusions of the hormone cause diuresis and natriuresis, inhibition of the renin-angiotensin
Angiotensin is a peptide hormone that causes vasoconstriction and a subsequent increase in blood pressure. It is part of the renin-angiotensin system, which is a major target for drugs that lower blood pressure. Angiotensin also stimulates the release of aldosterone, another hormone, fro…
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What is the direct action of atrial natriuretic hormone? Atrial natriuretic peptide (ANP) and brain natriuretic peptide (BNP) inhibit the secretion of renin, inhibit angiotensin-induced secretion of aldosterone, vasodilate the afferent and constrict the efferent glomerular arterioles, and inhibit sodium and water absorption by kidney tubules.
Atrial natriuretic peptide (ANP) and brain natriuretic peptide (BNP) inhibit the secretion of renin, inhibit angiotensin-induced secretion of aldosterone, vasodilate the afferent and constrict the efferent glomerular arterioles, and inhibit sodium and water absorption by kidney tubules.
Antidiuretic hormone. Antidiuretic hormone is required for water to be reabsorbed in the distal tubule and collecting duct. The later, straight segment of the distal tubule and the collecting duct are permeable to water as controlled by antidiuretic hormone.
What effect do natriuretic peptides have during heart failure when the heart dilates? Inhibits renin and aldosterone. Natriuretic peptides inhibit renin and aldosterone during heart failure when the heart dilates.
What is the direct action of atrial natriuretic hormone? ANP and BNP inhibit secretion of renin, inhibit angiotensin-induced secretion of aldosterone, vasodilate the afferent and constrict the efferent glomerular arterioles, and inhibit sodium and water absorption by kidney tubules.
ANP directly dilates the afferent arteriole and counteracts the norepinephrine induced vasoconstriction of the afferent arteriole.
ANP stimulates vasodilation of the afferent arteriole of glomerulus: this results in increased renal blood flow and an increase in glomerular filtration rate. Increased glomerular filtration, coupled with inhibition of reabsorption, results in increases in excretion of water and urine volume - diuresis!
Abstract. Atrial natriuretic factor (ANF) antagonizes vasoconstriction induced by numerous smooth muscle agonists and also lowers blood pressure in intact animals. ANF has particularly marked relaxant effects on angiotensin II-contracted vessels in vitro.
Atrial natriuretic peptide is a hormone that controls blood pressure in part by increasing the urinary excretion of sodium.