NEET PG DENTAL EXAM

Detailed explanation-1: -The primary osmoreceptors that control AVP secretion and thirst are located in the anterior hypothalamus.

Detailed explanation-2: -Osmoreceptors in the hypothalamus sense changes in the osmotic pressure of blood. When the osmotic pressure of blood changes, either more dilute or more concentrated, water diffusion into and out of the osmoreceptor cells occurs.

Detailed explanation-3: -Osmoreceptors in the hypothalamus signal the posterior pituitary gland to increase ADH secretion when plasma osmolarity becomes too high. ADH causes decreased urine volume and decreased plasma osmolarity.

Detailed explanation-4: -The primary osmoreceptors that control AVP secretion and thirst are located in the anterior hypothalamus, and lesions of this region in animals cause hyperosmolality through a combination of impaired thirst and osmotically stimulated AVP secretion.