renal vasoconstriction

What Is The Mechanism Of Atrial Natriuretic Hormone?

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What Is The Mechanism Of Atrial Natriuretic Hormone? Atrial natriuretic peptide (ANP) acts acutely to reduce plasma volume by at least 3 mechanisms: increased renal excretion of salt and water, vasodilation, and increased vascular permeability. What does atrial natriuretic factor do? Atrial natriuretic factor (ANF) is a 28 amino acid polypeptide hormone secreted mainly by

How Does Heart Failure Affect Sodium?

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How Does Heart Failure Affect Sodium? CHF causes a decrease in cardiac output and circulating blood volume, which in turn triggers a compensatory response aimed at preserving blood pressure. This stimulates the body to retain both water and sodium. In addition, in CHF sympathetic stimulation is increased, causing renal vasoconstriction. Why does sodium increase in