ATI RN
Multiple Choice Questions Endocrine System Questions
Question 1 of 5
Calcitonin is a hormone of which of following:
Correct Answer: B
Rationale: Calcitonin, from thyroid C-cells, lowers blood calcium by bone deposition, countering PTH. Adrenal cortex produces steroids (e.g., cortisol), not calcitonin. Pituitary regulates via TSH, not secreting calcitonin. Thymus releases thymosin for immunity. Thyroid's calcitonin role distinguishes it, key to calcium balance, unlike adrenal, pituitary, or immune glands.
Question 2 of 5
The growth hormone produced by the pituitary gland is known as
Correct Answer: A
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 3 of 5
How is hormone secretion regulated?
Correct Answer: D
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 4 of 5
Which hormone regulates carbohydrate, protein and fat metabolism in the body and iodine is essential for the synthesis of it?
Correct Answer: D
Rationale: Thyroxine (T4), synthesized in the thyroid using iodine, governs carbohydrate, protein, and fat metabolism, setting cellular energy use. Testosterone (testes) shapes male traits, insulin (pancreas) controls glucose uptake, adrenaline (adrenals) mobilizes energy acutely not broad metabolism. Iodine's necessity for thyroxine synthesis distinguishes it, critical for metabolic health, with deficiencies causing goiter or hypothyroidism, unlike other hormones.
Question 5 of 5
The hormone melatonin which regulates sleep is secreted by which gland?
Correct Answer: A
Rationale: Melatonin, regulating sleep, is secreted by the pineal gland, not listed; however, pituitary (A) is incorrect pineal is intended but missing. Corpus luteum makes progesterone, progesterone's a hormone, melatonin's not a gland. Assuming error, pineal aligns with melatonin's role. This circadian function distinguishes it, key to sleep patterns, contrasting with reproductive or regulatory glands.