ATI RN
Endocrine System Multiple Choice Questions Questions
Question 1 of 5
When blood calcium levels are high, is released from the thyroid gland to deposit the excess calcium into the bones.
Correct Answer: B
Rationale: Calcitonin, from thyroid C-cells, lowers high blood calcium by depositing it into bones opposes resorption. PTH (parathyroid) raises calcium, opposite effect. Oxytocin (hypothalamus) aids labor, unrelated. Glucagon (pancreas) raises glucose, not calcium. Calcitonin's bone storage distinguishes it, critical for calcium balance, unlike raising, reproductive, or glucose hormones.
Question 2 of 5
Which of the following is NOT true of glucagon?
Correct Answer: D
Rationale: Glucagon (pancreas) raises blood glucose via glycogenolysis and promotes fat/protein use (sparing glucose), but doesn't store glucose as glycogen insulin does that (glycogenesis). Storage contradicts glucagon's role mobilizes energy. Pancreatic origin, glucose increase, and sparing are true. Non-storage distinguishes glucagon, key to its catabolic action, unlike anabolic error.
Question 3 of 5
Which of the following hormones does NOT aid in regulating fuel metabolism?
Correct Answer: B
Rationale: Aldosterone (adrenal) regulates sodium/potassium, not fuel (glucose/fat) electrolyte focus. Insulin lowers glucose, glucagon raises it, cortisol mobilizes fuel (gluconeogenesis, lipolysis) all metabolic. Aldosterone's non-metabolic role distinguishes it, key to fluid balance, unlike glucose/fat-regulating hormones.
Question 4 of 5
The exocrine cells of the pancreas produce:
Correct Answer: D
Rationale: Pancreatic exocrine cells (acinar) produce digestive juices (e.g., amylase, lipase) via ducts aid digestion. Adrenaline (adrenal medulla) is endocrine, stress-related. Insulin (pancreatic β-cells) is endocrine, glucose-lowering, not exocrine. Cortisol (adrenal cortex) is steroid, not pancreatic. Digestive juices distinguish exocrine pancreas, key to nutrient breakdown, unlike endocrine stress, glucose, or steroid outputs.
Question 5 of 5
Pituitary hormone triggering the male testes to generate sperm and in females, triggering follicular development on a monthly basis is
Correct Answer: C
Rationale: Follicle-stimulating hormone (FSH) from the anterior pituitary stimulates spermatogenesis in testes and follicular growth in ovaries not prolactin (milk), GH (growth), or LH (ovulation/testosterone). This dual reproductive role distinguishes FSH, essential for gametogenesis, a frequent NEET focus contrasting with other pituitary functions.