In a homeostatic reflex triggered by eating a salt-rich meal, which organs function as effectors?

The correct choice identifies the heart, blood vessels, and kidneys as the effectors in a homeostatic reflex related to a salt-rich meal. When salt intake increases, it leads to an elevation in blood sodium levels, which can disrupt fluid balance and blood pressure.

The kidneys are crucial effectors because they help regulate sodium and water balance by altering urine output. They can excrete excess sodium and adjust water reabsorption to reduce blood volume. The heart plays a role in this reflex as it can modify its rate and force of contraction in response to changes in blood volume and pressure. Additionally, blood vessels are impacted because they can constrict or dilate to manage blood pressure in response to fluctuations in volume and solute concentration.

The integrated response from these organs works to maintain homeostasis by adjusting the body's fluid balance and blood pressure in reaction to the increased salt consumption, allowing the body to return to its optimal state.