Which of the following hormones released from the pituitary is actually synthesized in the hypothalamus?
(1) Adrenocorticotrophic hormone (ACTH)
(2) Luteinizing hormone (LH)
(3) Anti-diuretic hormone (ADH)
(4) Follicle-stimulating hormone (FSH)
Anti-diuretic hormone (ADH) is produced in the hypothalamus but stored and released from the posterior pituitary gland. The other hormones listed (ACTH, LH, FSH) are synthesized and released by the anterior pituitary. Thus, ADH is unique because it is synthesized in the hypothalamus and only released by the pituitary.
Hence, the correct answer is option (3).