Tiroid hormonu refers to hormones produced by the thyroid gland, which is located in the neck. The primary hormones are thyroxine (T4) and triiodothyronine (T3). These hormones play a crucial role in regulating metabolism, energy production, and overall growth and development in the body. The production of tiroid hormonu is influenced by the pituitary gland, which releases thyroid-stimulating hormone (TSH) to signal the thyroid to produce T3 and T4. Proper levels of these hormones are essential for maintaining a healthy metabolism and ensuring that the body's systems function effectively.