Which gland secretes melatonin and is regulated by the body's biological rhythm?
Adrenal gland
Pineal gland
Pituitary gland
Pancreas
The Correct Answer is B
A. Adrenal gland: Produces cortisol and adrenaline; not melatonin.
B. Pineal gland: Secretes melatonin; controls circadian rhythms.
C. Pituitary gland: Master gland; does not secrete melatonin.
D. Pancreas: Produces insulin and glucagon; unrelated to sleep regulation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Hypothyroidism / overweight: Hypothyroidism leads to slowed metabolism, fatigue, and weight gain.
B. Hyperglycemia / underweight: Hyperglycemia relates to blood glucose, not thyroid function.
C. Hypoglycemia / underweight: This describes low blood sugar, unrelated to thyroid activity.
D. Hyperthyroidism / overweight: Hyperthyroidism typically causes weight loss, not weight gain.
Correct Answer is A
Explanation
A. ADH: Antidiuretic hormone promotes water reabsorption in the kidneys, reducing urine output.
B. Oxytocin: Stimulates uterine contractions and milk ejection; not related to urine regulation.
C. ACTH: Secreted by anterior pituitary; stimulates adrenal cortex, not kidneys.
D. FSH: Stimulates follicles in the ovaries; no effect on kidney function.
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