What two hormones are secreted to prevent dehydration?

The correct answer identifies aldosterone and antidiuretic hormone (ADH) as the hormones responsible for preventing dehydration. Aldosterone, produced by the adrenal glands, plays a key role in regulating sodium and potassium levels in the body. It promotes the reabsorption of sodium in the kidneys, which also leads to water retention, thereby helping to maintain blood volume and prevent dehydration.

Antidiuretic hormone, also known as vasopressin, is produced in the hypothalamus and released by the pituitary gland. Its primary function is to promote water reabsorption in the kidneys by increasing the permeability of the kidney tubules. As a result, more water is retained in the body, reducing urine output and aiding in the conservation of body fluids during times of dehydration.

These two hormones work in concert to maintain fluid balance, which is essential for overall hydration status and proper physiological functioning. Together, they help the body respond to hydration needs effectively, ensuring that water is conserved when necessary.