Which hormones are primarily controlled by the thyroid gland?

The thyroid gland plays a critical role in regulating metabolism through the production of thyroid hormones, primarily thyroxine (T4) and triiodothyronine (T3). These hormones influence the metabolic processes in nearly all body tissues, including the rate at which the body converts food into energy, the metabolism of fats and carbohydrates, and the regulation of protein synthesis.

Thyroid hormones also help to regulate heart rate, body temperature, and growth and development. By increasing metabolic rates, they help in maintaining normal physiological function and energy levels. This is why the option mentioning thyroid hormones regulating metabolism accurately reflects the primary function of the thyroid gland. The other choices relate to hormones produced by different glands or have different physiological roles, thereby not aligning with the specific functions of the thyroid gland.