Question

Antidiuretic hormone ADH is produced from

• A. Kidney
• B. Hypothalamus
• C. Anterior pituitary
• D. Posterior pituitary

Answer 1

The correct option is D

Posterior pituitary

The correct option is D

Explanation of the correct option:

1. Antidiuretic hormone (ADH) is synthesized by hypothalamic neurons and stored in the posterior pituitary in form of Herring bodies.
2. ADH has also called vasopressin or arginine vasopressin and it acts on renal tubules of nephrons in the kidney resulting in conditional reabsorption of water.
3. The posterior pituitary (neurohypophysis) produces antidiuretic hormone when we intake less fluid so as to maintain osmotic concentration in blood.
4. The posterior pituitary is also called Pars nervosa.

Explanation of the incorrect option:

Option A:

1. The kidney is a bean-shaped, retroperitoneal, and most important excretory organ that is involved in the excretion of urea as well as other nitrogenous wastes.

Option B:

1. Hypothalamus is present just below the thalamus region of the forebrain and above the pituitary gland.
2. It is known as the “master of the master gland” of the body as it regulates the secretion of hormones from other endocrine glands.

Option C:

1. Anterior pituitary (adenohypophysis) secretes hormones that regulate a wide range of bodily activities, from reproduction to growth.

Final answer: Antidiuretic hormone ADH is produced from the posterior pituitary.