Expanded blood volume stimulates stretch receptors in the atria of the heart, causing increased secretion of atrial natriuretic peptide.
Expanded blood volume refers to a condition or situation in which the normal volume of blood is expanded beyond its normal volume. This can be due to the intake of blood volume expanders.
When the blood volume is expanded beyond normal, there is an increase in the central venous pressure which also result in increase in right atrial pressure, right ventricular end-diastolic pressure and volume.
Therefore, expanded blood volume stimulates stretch receptors in the atria of the heart, causing increased secretion of atrial natriuretic peptide.
In conclusion, expanded blood volume results in increased atrial pressure.
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