Answer and Discussion of Quiz Set: N-001

1.    Which of the following hormone is not produced in the anterior pituitary?

A.  Melatonin

B.  Prolactin

C.  Follicle stimulating hormone

D.  Growth hormone

E.  Luteinizing hormone

Answer and Discussion: The answer is (A). Melatonin (N-acetyl-5-methoxy-tryptamine) is produced in the pineal gland and is a derivative of tryptophan. The serum level of melatonin vary in a daily cycle and one of it major functions is believed to be regulation of circadian rhythms. Its production is stimulated by darkness and inhibited by light.