ANATOMY

Detailed explanation-1: -Thyroid hormone is the hormone that controls your body’s metabolism, the process in which your body transforms the food you eat into energy. The two main hormones your thyroid releases-thyroxine (T4) and triiodothyronine (T3)-collectively make up thyroid hormone.

Detailed explanation-2: -The thyroid gland releases triiodothyronine (T3) and thyroxine (T4). These hormones play an important role in regulation of your weight, energy levels, internal temperature, skin, hair, nail growth, metabolism and is an important part of the endocrine system.

Detailed explanation-3: -T3 and T4 work together to regulate how your body uses energy. These hormones also play an important role in controlling your weight, body temperature, muscle strength, and nervous system.

Detailed explanation-4: -T4 (thyroxine) is the main hormone produced by the thyroid gland. A laboratory test can be done to measure the amount of free T4 in your blood. Free T4 is the thyroxine that is not attached to a protein in the blood.

Detailed explanation-5: -Even though both molecules can trigger biological effects, T3 is considered the biologically active thyroid hormone that binds to thyroid hormone receptors (TR), while T4 is a prohormone that must be converted to T3 in order to initiate signalling and gain biological activity.