Which factor is associated with the release of ADH?

The correct factor associated with the release of Antidiuretic Hormone (ADH), also known as vasopressin, is high solute concentration. ADH is primarily released from the posterior pituitary gland in response to changes in the osmolarity of the blood. When the concentration of solutes, such as sodium, in the blood increases, it indicates that the body is becoming dehydrated or that there is insufficient water available. In such cases, the hypothalamus detects this high osmolarity and signals the posterior pituitary to release ADH.

The role of ADH is to promote water reabsorption in the kidneys, leading to the conservation of water and a decrease in urine output. This helps to dilute the high solute concentration back to a normal level, restoring homeostasis. Therefore, when solute levels are elevated, the secretion of ADH increases to help the body retain more water and correct the osmotic imbalance.