Question

Name the $T_3$ and $T_4$ components of the, thyroid hormone. Explain their specific action.

Answer 1

Triiodothyronine and tetraiodothyronine are T${}_3$ and T${}_4$ components of the thyroid hormone respectively. T${}_4$ is usually regarded as the base hormone, the inactive form, while T${}_3$ is active form.

Thyroid hormones play an important role in the regulation of the basal metabolic rate. These hormones also support the process of red blood cell formation. Thyroid hormones control the metabolism of carbohydrates, proteins and fats. Maintenance of water and electrolyte balance is also influenced by thyroid hormones.