Which hormone stimulates the thyroid gland to secrete thyroxine?

Correct answer: (a) TSH

Explanation

Thyroid-Stimulating Hormone (TSH), secreted by the anterior pituitary, signals the thyroid gland to release thyroxine.

FSH acts on gonads, LTH (prolactin) on the mammary glands, and ACTH on the adrenal cortex.

Faulty TSH/thyroxine balance causes disorders like goitre.