The osmoreceptors contributing to water balance and vasopressin secretion are located in the:
A) adrenal cortex.
B) hypothalamus.
C) juxtaglomerular apparatus.
D) renal cortex.
E) renal medulla.

Question

Quizplus · Accepted Answer

Osmoreceptors are specialized cells located in the hypothalamus that respond to changes in serum osmolality. When serum osmolality rises, osmoreceptors stimulate the hypothalamus to release vasopressin, also known as antidiuretic hormone (ADH), which acts on the kidneys to conserve water. This helps maintain proper water balance in the body. The adrenal cortex secretes hormones such as cortisol and aldosterone that regulate salt and water balance in the body, but it does not contain osmoreceptors. The juxtaglomerular apparatus is a specialized structure in the kidney that plays a role in regulating blood pressure and volume, but it does not contain osmoreceptors. The renal cortex and medulla contain various types of cells that contribute to kidney function, but osmoreceptors are specifically located in the hypothalamus.

The Osmoreceptors Contributing to Water Balance and Vasopressin Secretion Are