ATI LPN
ATI Quiz Medical Surgical Endocrine Questions
Question 1 of 5
Osteoclasts are derived from:
Correct Answer: D
Rationale: Osteoclasts originate from monocyte/macrophage lineage in bone marrow.
Question 2 of 5
Which hormone acts on bone to release calcium into the blood?
Correct Answer: D
Rationale: Parathormone, or parathyroid hormone, is produced and secreted by the parathyroid glands. Low calcium levels will stimulate release of parathyroid hormone, which increases the plasma level of calcium. Parathormone acts on the renal tubules to increase the excretion of phosphorus in the urine and to stimulate the reabsorption of calcium. Parathormone also acts on bone, causing the release of calcium from the bone into the bloodstream.
Question 3 of 5
If an endocrine gland begins to hypersecrete, it usually causes which result?
Correct Answer: A
Rationale: Hyperplasia (increased cellular growth) is the usual cause of hypersecretion of an endocrine gland.
Question 4 of 5
Which of the following cell types is NOT found in the pancreas?
Correct Answer: D
Rationale: The pancreas contains acinar cells (exocrine), alpha cells (glucagon), beta cells (insulin), and delta cells (somatostatin), but kappa cells are not a recognized pancreatic cell type.
Question 5 of 5
Alpha cells in the pancreas secrete ___ to protect the body from hypoglycaemia.
Correct Answer: D
Rationale: Glucagon, secreted by pancreatic alpha cells, raises blood glucose levels to prevent hypoglycemia.