When venous return is increased, stretch receptors in the atria of the heart are activated.This results in

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When venous return is increased, it leads to an increase in blood volume and pressure. Stretch receptors in the atria detect this and respond by inhibiting the secretion of vasopressin (antidiuretic hormone, ADH), which in turn affects the kidneys to reduce water reabsorption, leading to increased urine production and a decrease in blood volume and pressure, thus balancing the initial increase in venous return.

When Venous Return Is Increased, Stretch Receptors in the Atria