Pituitary & Hypothalamus — NEET Biology MCQs with Solutions
Free NEET Biology Pituitary & Hypothalamus MCQs with step-by-step solutions (6 questions). Part of Chemical Coordination and Integration. Practise online on Prepizo — no login needed.
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Questions with solutions
Q1 — Pituitary & Hypothalamus · easy · theory
The gland often called the "master gland" because it controls many other endocrine glands is the:
A. Pituitary gland ✓ Correct
B. Adrenal gland
C. Pineal gland
D. Thyroid gland
Solution: The pituitary secretes tropic hormones controlling other glands — hence "master gland" (itself regulated by the hypothalamus).
Q2 — Pituitary & Hypothalamus · easy · theory
A deficiency of Growth Hormone (GH) in childhood leads to:
A. Goitre
B. Gigantism
C. Acromegaly
D. Dwarfism ✓ Correct
Solution: Low GH in children causes pituitary dwarfism; excess causes gigantism.
Q3 — Pituitary & Hypothalamus · medium · theory
Excess secretion of growth hormone in adults causes ______, while in childhood it causes ______:
A. Gigantism; acromegaly
B. Goitre; cretinism
C. Acromegaly; gigantism ✓ Correct
D. Dwarfism; gigantism
Solution: GH excess: gigantism (children, before growth plates fuse) and acromegaly (adults — thickened extremities/jaw).
Q4 — Pituitary & Hypothalamus · medium · theory
The hormone that stimulates milk production in mammary glands after childbirth is:
A. ADH
B. Insulin
C. Oxytocin
D. Prolactin ✓ Correct
Solution: Prolactin promotes milk synthesis; oxytocin stimulates milk ejection and uterine contraction.
Q5 — Pituitary & Hypothalamus · hard · theory
The posterior pituitary (neurohypophysis) does NOT synthesise hormones; it stores and releases ______ made by the ______:
A. Insulin; pancreas
B. Oxytocin and vasopressin (ADH); hypothalamus ✓ Correct
C. GH and TSH; hypothalamus
D. Thyroxine; thyroid
Solution: ADH and oxytocin are made by hypothalamic neurons and merely stored/released by the posterior pituitary.
Q6 — Pituitary & Hypothalamus · hard · theory
The hypothalamus controls the anterior pituitary by secreting ______ that travel through a ______:
A. Enzymes; direct duct
B. Antibodies; lymph vessel
C. Releasing and inhibiting hormones; portal (hypophyseal) blood system ✓ Correct
D. Steroids; nerve axon
Solution: Hypothalamic releasing/inhibiting hormones reach the anterior pituitary through the hypothalamo-hypophyseal portal system.