What is the primary function of thyroid-stimulating hormone (TSH) in the human body?

A To stimulate the production of insulin
B To regulate the production of thyroid hormones ✓
C To control the levels of cortisol in the blood
D To modulate the activity of growth hormone

Explanation

Thyroid-stimulating hormone (TSH) is a hormone produced by the pituitary gland that stimulates the thyroid gland to produce thyroid hormones, which play a crucial role in regulating metabolism, growth, and development.

Source

Guyton and Hall Textbook of Medical Physiology
Hormones and Endocrine Markers Endocrinology Thyroid Hormones Easy MEDICAL Confidence: high