A physiologist is conducting an experiment to measure the physiological changes include blood pressure and left ventricular volume after infusion of 3 L isotonic saline. He detects an increasing in blood hormone level after infusion. This hormone is most likely to increase which of the following in this test subject?

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Eductional Objective: In this study, there is an intravascular volume expansion after saline infusion and this will result in release an atrial natriuretic peptide and brain natriuretic peptide from the atria and ventricles, respectively. These hormones will promote increased glomerular filtration rate, natriuresis, and diuresis.

A Physiologist Is Conducting an Experiment to Measure the Physiological