ATI RN
Endocrine System Questions Questions
Question 1 of 5
The left supra-renal vein drains into:
Correct Answer: C
Rationale: The left supra-renal vein drains into the left renal vein. This is because the left adrenal gland is located above the left kidney, and the left renal vein is responsible for draining blood from the left kidney and adjacent structures, including the left adrenal gland. Therefore, the correct answer is C. Incorrect options: A: The inferior vena cava receives blood from various veins in the body but not specifically from the left supra-renal vein. B: The inferior mesenteric vein drains the large intestine and does not receive blood from the left supra-renal vein. D: The superior mesenteric vein drains blood from the small intestine and does not receive blood from the left supra-renal vein. In summary, the left supra-renal vein drains into the left renal vein due to their anatomical proximity, making option C the correct answer.
Question 2 of 5
Iodine-containing hormones:
Correct Answer: D
Rationale: The correct answer is D because iodine-containing hormones, such as thyroid hormones, regulate the metabolic rate by influencing the body's energy production and utilization. TSH (choice A) is not an iodine-containing hormone but a pituitary hormone that stimulates the thyroid gland to produce thyroid hormones. Hypothalamus releasing hormones (choice B) are not iodine-containing hormones. Steroids (choice C) are a different class of hormones that do not contain iodine. In summary, choice D is correct as iodine-containing hormones play a crucial role in regulating metabolic rate, while the other choices are incorrect as they do not accurately describe this function.
Question 3 of 5
“Sugar, salt, and sex†is descriptive of
Correct Answer: B
Rationale: The correct answer is B: cortisol, aldosterone, and testosterone. "Sugar, salt, and sex" refers to hormones produced by the adrenal glands. Cortisol regulates sugar metabolism, aldosterone regulates salt balance, and testosterone is involved in sexual characteristics. A: ACTH, TSH, and somatotropic hormone are hormones produced by the pituitary gland. C: Epinephrine, norepinephrine, and estrogen are not directly related to the terms given. D: Insulin, glucagon, and cortisol are involved in glucose regulation, but do not match the specific terms provided.
Question 4 of 5
The only hormone that lowers blood glucose levels is:
Correct Answer: B
Rationale: The correct answer is B: insulin. Insulin is produced by the pancreas and helps lower blood glucose levels by promoting the uptake of glucose into cells for energy or storage. Glucagon (A) raises blood glucose levels, epinephrine (C) and cortisol (D) also increase blood glucose levels by stimulating the release of glucose from storage sites.
Question 5 of 5
Which of the following is most likely to cause the secretion of calcitonin?
Correct Answer: D
Rationale: The correct answer is D: Elevated plasma calcium level. Calcitonin is released from the thyroid gland in response to high levels of calcium in the blood. When plasma calcium levels are elevated, calcitonin is secreted to help regulate calcium homeostasis by promoting calcium deposition in bones. Choices A, B, and C are incorrect because hypocalcemia (low calcium levels), hyperglycemia (high blood sugar levels), and dehydration do not directly stimulate the secretion of calcitonin.