Which of the following anterior pituitary hormones stimulates milk production?

Correct Answer: B

Rationale: Prolactin from the anterior pituitary triggers milk production in mammary glands, not LH (ovulation), thyrotropin (thyroid), MSH (pigmentation), or ACTH (cortisol). Its specific lactogenic role distinguishes it, vital for postpartum nutrition, contrasting with reproductive or stress hormones.

Correct Answer: D

Rationale: Parathyroid glands (often labeled 'E' in diagrams) secrete PTH to raise blood calcium, unlike thyroid (calcitonin, lowers) or others. 'E' aligns with prior answer. This distinguishes PTH's role in calcium homeostasis, vital for nerve and bone function, contrasting with metabolic glands.

Correct Answer: A

Rationale: Cortisol from zone 'B' (fasciculata) resists stress and raises glucose via gluconeogenesis, not sympathetic (medulla) or glycogenolysis (glucagon/epinephrine). This distinguishes cortisol's chronic stress function, vital for energy, contrasting with acute responses.

Correct Answer: C

Rationale: Acromegaly from pituitary hGH excess in adulthood causes bone thickening, not goiter (thyroid), Graves' (thyroid), Cushing's (cortisol), or gigantism (childhood). This distinguishes acromegaly's adult phenotype, critical for diagnosis, contrasting with childhood growth or thyroid disorders.

Correct Answer: A

Rationale: Adipose tissue produces leptin for appetite control, not insulin (pancreas) or others (mislisted organs). 'E' fits intent. This distinguishes leptin's metabolic role, vital for energy balance, contrasting with pancreatic or gonadal hormones.