ATI LPN
PN Learning System Medical Surgical Endocrine Practice Quiz Questions
Question 1 of 5
Endocrine glands secrete hormones into the bloodstream for transport to target organs.
Correct Answer: A
Rationale: Endocrine glands release hormones into the blood to reach distant targets.
Question 2 of 5
Thyroxine and triiodothyronine, the thyroid hormones, do not have a specific target organ; instead, they stimulate most of the cells of the body to metabolize at a faster rate.
Correct Answer: A
Rationale: Thyroid hormones increase metabolism in nearly all body cells.
Question 3 of 5
The adrenal ______ secretes a small amount of both sex hormones.
Correct Answer: B
Rationale: The adrenal cortex produces minor amounts of sex hormones like androgens.
Question 4 of 5
The pancreatic islets produce __________.
Correct Answer: A
Rationale: Islets secrete insulin and glucagon to regulate blood glucose.
Question 5 of 5
Melatonin is involved with circadian rhythms.
Correct Answer: A
Rationale: Melatonin helps synchronize the body's day-night cycle.