Question

Choose the incorrect pair from the following:

• A. Pituitary gland -- Follicle stimulating hormone
• B. Ovary -- Progesterone
• C. Pancreas -- Glucagon
• D. Adrenal gland -- Vasopressin

Hint:

Vasopressin (ADH) is produced by the hypothalamus and released by the posterior pituitary, NOT the adrenal gland. The adrenal medulla secretes adrenaline and noradrenaline (``fight or flight'' hormones). Remember: ``Adrenal $\neq$ ADH'' --- the shared `A' is a common trap in exams. ADH = Anti-Diuretic Hormone = Vasopressin = posterior pituitary.

Answer 1

The Correct Option is D

Concept:
The endocrine system consists of glands that secrete hormones directly into the bloodstream. Each gland produces specific hormones that regulate various physiological processes. This question asks us to identify the

incorrect gland-hormone pair.

Step 1: Verify each gland-hormone pair.

(A) Pituitary gland -- Follicle Stimulating Hormone (FSH): CORRECT
The

anterior pituitary gland (adenohypophysis) produces several tropic hormones, including:

• FSH (Follicle Stimulating Hormone) --- stimulates follicle development in ovaries and sperm production in testes.

• LH (Luteinizing Hormone), GH (Growth Hormone), TSH, ACTH, Prolactin.
FSH is indeed secreted by the pituitary gland.

(B) Ovary -- Progesterone: CORRECT
The

ovaries secrete:

• Oestrogen (from follicles) --- female secondary sexual characteristics.

• Progesterone (from corpus luteum after ovulation) --- prepares uterus for implantation, maintains pregnancy.
Progesterone is indeed secreted by the ovary (corpus luteum).

(C) Pancreas -- Glucagon: CORRECT
The

pancreas is both an exocrine and endocrine gland. Its islets of Langerhans contain:

• $\alpha$ (alpha) cells: secrete

glucagon --- raises blood glucose by stimulating glycogenolysis and gluconeogenesis in the liver.

• $\beta$ (beta) cells: secrete

insulin --- lowers blood glucose.

• $\delta$ (delta) cells: secrete somatostatin.
Glucagon is indeed secreted by the pancreas.

(D) Adrenal gland -- Vasopressin: INCORRECT
The

adrenal glands (located above the kidneys) consist of:

• Adrenal cortex: secretes corticosteroids (cortisol, aldosterone, androgens).

• Adrenal medulla: secretes

adrenaline (epinephrine) and

noradrenaline (norepinephrine).

Vasopressin (ADH --- Antidiuretic Hormone) is not produced by the adrenal gland. It is produced by the

hypothalamus and stored and released by the

posterior pituitary gland (neurohypophysis). Vasopressin regulates water reabsorption by the kidneys. Therefore, the pair ``Adrenal gland -- Vasopressin'' is

INCORRECT.

Step 2: Summary table.
tabular|l|l|l|

Gland &

Hormone &

Correct?
Pituitary & FSH &
Ovary & Progesterone &
Pancreas & Glucagon &
Adrenal & Vasopressin &
(incorrect -- ADH is from posterior pituitary)
tabular