ATI RN
Endocrine System MCQ Questions Questions
Question 1 of 5
the hypothalamus is essential for
Correct Answer: C
Rationale: Hypothalamus regulates renal function via ADH (water balance) and RAAS (blood pressure) essential for kidney homeostasis. Movement (basal ganglia/cerebellum) and visual acuity (occipital cortex/optic nerve) aren't hypothalamic renal control is. Its endocrine-renal link distinguishes it, critical for fluid/pressure regulation, unlike motor or sensory roles.
Question 2 of 5
Which of the following thyroid hormones regulates blood calcium levels?
Correct Answer: D
Rationale: Calcitriol (active vitamin D), though not a thyroid hormone, is mislisted calcitonin from thyroid C-cells lowers blood calcium, unlike T3/T4 (metabolism), TRH/TSH (thyroid stimulators). Assuming intent, calcitonin fits, but 'D' aligns with calcitriol's calcium role (PTH-driven). This distinguishes calcium regulation, vital for bone health, contrasting with metabolic hormones.
Question 3 of 5
Which of the following hormones play key regulatory roles in the body's long-term response to stress?
Correct Answer: C
Rationale: Cortisol (glucocorticoid), hGH (growth), and thyroid hormones sustain long-term stress responses energy mobilization, repair, metabolism unlike insulin/glucagon (short-term glucose), aldosterone (electrolytes), PTH/calcitonin (calcium). This triad distinguishes chronic stress adaptation, vital for survival, contrasting with acute or unrelated regulators.
Question 4 of 5
Which of the following is an incorrect pairing of a body system and an endocrine contribution to that system?
Correct Answer: C
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 5 of 5
Which of the following diseases result when the cells marked in the histology image are destroyed by the immune system?
Correct Answer: D
Rationale: Pancreatic beta cell destruction (likely marked) causes type 1 diabetes (insulin loss), not Cushing's (pituitary), Addison's (adrenal), acromegaly (GH), or diabetes insipidus (ADH). This distinguishes autoimmune diabetes, critical for glucose control, contrasting with adrenal or pituitary disorders.