Excess secretion of epinephrine:

Correct Answer: C

Rationale: Excess secretion of epinephrine activates the fight-or-flight response, leading to the release of stored glucose into the bloodstream, elevating blood glucose levels. This helps provide immediate energy for the body to respond to stress. Epinephrine does not relieve anxiety (Choice A), as it is a stress hormone. It does not stimulate glycogen synthesis (Choice B) but rather breaks down glycogen to release glucose. Epinephrine increases heart rate and blood pressure (opposite of Choice D) to support increased energy needs during stress. Thus, the correct answer is C.

Correct Answer: A

Rationale: The correct answer is A: excess facial hair. Virilization refers to the development of male secondary sexual characteristics in females due to increased androgen levels. Excess facial hair, known as hirsutism, is a classic sign of virilization. Buffalo hump (B) and truncal obesity (C) are associated with Cushing's syndrome, not virilization. Gonadal atrophy (D) refers to the shrinkage of the gonads and is not a typical feature of virilization.

Correct Answer: B

Rationale: Thyroxine is also known as T4, a thyroid hormone produced by the thyroid gland. It plays a crucial role in regulating metabolism. TSH (Thyroid Stimulating Hormone) is a hormone produced by the pituitary gland to stimulate thyroid hormone production, not thyroxine itself. Choice C is incorrect because thyroxine exerts negative feedback on TSH, not T3. Choice D is incorrect as thyroxine actually increases basal metabolic rate. Thus, the correct answer is B as thyroxine is indeed T4.

Correct Answer: D

Rationale: The correct answer is D. The adrenal cortex secretes cortisol, the pancreas secretes insulin, and the adenohypophysis secretes growth hormone. Cortisol helps regulate metabolism, insulin controls blood sugar levels, and growth hormone stimulates growth. Choice A is incorrect because ADH is not secreted by the adrenal cortex, and aldosterone is not secreted by the pancreas or adenohypophysis. Choice B is incorrect because epinephrine is not secreted by the adrenal cortex, and ACTH is not secreted by the pancreas or adenohypophysis. Choice C is incorrect because androgen is not secreted by the pancreas or adenohypophysis, and ADH is not secreted by the adrenal cortex.

Correct Answer: D

Rationale: The correct answer is D: Secrete FSH. The hypothalamus produces releasing and inhibiting hormones that regulate the pituitary gland's secretion of hormones such as FSH. The hypothalamus itself does not secrete FSH. A, B, and C are functions of the hypothalamus as it is involved in regulating heart rate, temperature control, and water balance through various hormonal and neural pathways.