Which of the following pituitary hormones regulates the activity of another endocrine gland? A) LH (lutenizing hormone) B) Prolactin C) GH (growth hormone) D) ADH (antidiuretic hormone)
Answer (1)
To determine which pituitary hormone regulates the activity of another endocrine gland, we should look at the functions of each hormone listed:
A) LH (Luteinizing Hormone): LH is a hormone produced by the anterior pituitary gland. It plays a critical role in regulating the function of the ovaries in females and the testes in males. In females, LH triggers ovulation and stimulates the production of estrogen and progesterone. In males, it stimulates the production of testosterone. Therefore, LH regulates the activity of the gonads, which are endocrine glands.
B) Prolactin: This hormone is also produced by the anterior pituitary gland and primarily stimulates milk production in females after childbirth. While important for lactation, it does not primarily regulate another endocrine gland's activity.
C) GH (Growth Hormone): Growth Hormone stimulates growth, cell reproduction, and regeneration in humans. It acts throughout the body for growth purposes but doesn't specifically regulate another endocrine gland.
D) ADH (Antidiuretic Hormone): Also known as vasopressin, ADH is produced by the hypothalamus and stored in the posterior pituitary gland. It primarily regulates water balance in the body by affecting the kidneys, but it does not regulate any other endocrine glands.
Given these explanations, the correct answer is A) LH (Luteinizing Hormone) , as it directly regulates the activity of the gonads, influencing hormone production in these endocrine glands.
