Thyroid hormones are mainly concerned with all of the following functions, except
Thymosins of thymus are mainly responsible for the cell-mediated immunity.
Thyroid hormones control the metabolism of carbohydrates, proteins and fats. Maintenance of water and electrolyte balance is also influenced by thyroid hormones. Thyroid gland also secretes a protein hormone called thyrocalcitonin (TCT) which regulates the blood calcium levels.