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NEET 2025 · BiologyPrevious Year Question

Which of the following hormones released from the pituitary is actually synthesized in the hypothalamus?

Answer: (D) Anti-diuretic hormone (ADH). Answer: (d) Anti-diuretic hormone (ADH) Solution: ADH (vasopressin) and oxytocin are released from the posterior pituitary but are actually synthesised by the hypothalamus and transported axonally to the neurohypophysis.

  1. A.Follicle-stimulating hormone (FSH)
  2. B.Adrenocorticotropic hormone (ACTH)
  3. C.Luteinizing hormone (LH)
  4. D.Anti-diuretic hormone (ADH)✓

Correct Answer

(D) Anti-diuretic hormone (ADH)

Solution & Explanation

Answer: (d) Anti-diuretic hormone (ADH) Solution: ADH (vasopressin) and oxytocin are released from the posterior pituitary but are actually synthesised by the hypothalamus and transported axonally to the neurohypophysis. FSH, LH and ACTH are gonadotrophins/tropic hormones produced by the anterior pituitary (pars distalis) itself. Hence the pituitary-released hormone synthesised in the hypothalamus is ADH. NCERT Reference: Chapter 19, Page 241, Line(s) 24-28 — "Neurohypophysis (pars nervosa) also known as posterior pituitary, stores and releases two hormones called oxytocin and vasopressin, which are actually synthesised by the hypothalamus and are transported axonally to neurohypophysis."

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