Answer: acromegaly.
- A acromegaly
- B dwarfism
- C goitre
- D diabetes
Correct answer: A. acromegaly
Explanation: Excess growth hormone in adults causes acromegaly (enlarged hands, feet and face).
The hypothalamus releases hormones that direct the pituitary, which releases its own trophic hormone to a target gland; that gland's hormone output then feeds back (dashed lines) to suppress both the pituitary and hypothalamus once levels are sufficient - a self-correcting loop running the entire endocrine system.
Concept context
The endocrine glands, hormone classification and mechanism of action, and negative feedback regulation.