Question

Which of the following hormones is secreted by the anterior pituitary gland and stimulates the thyroid gland to release thyroxine?

• A. Adrenocorticotropic hormone (ACTH)
• B. Thyroid-stimulating hormone (TSH)
• C. Follicle-stimulating hormone (FSH)
• D. Luteinizing hormone (LH)

Hint:

To identify the correct hormone, match its function with the target organ or process. TSH is specifically associated with the thyroid gland, while other pituitary hormones target different glands or systems.

Answer 1

The Correct Option is B

The anterior pituitary gland produces multiple hormones regulating diverse physiological functions. Specifically, thyroid-stimulating hormone (TSH) acts on the thyroid gland, prompting the release of thyroxine (T4) and triiodothyronine (T3). These thyroid hormones influence metabolism, growth, and development. Other anterior pituitary hormones have distinct roles:
- Adrenocorticotropic hormone (ACTH): Stimulates the adrenal cortex to secrete corticosteroids like cortisol, affecting stress response and metabolism.
- Follicle-stimulating hormone (FSH): Promotes ovarian follicle maturation in females and sperm production in males.
- Luteinizing hormone (LH): Induces ovulation and corpus luteum formation in females, and stimulates testosterone production in males.
Therefore, thyroid-stimulating hormone (TSH) is the anterior pituitary hormone that stimulates the thyroid gland.