what does the thyroid do in humans
The thyroid gland controls how quickly the body uses energy, makes proteins, and controls the body's sensitivity to other hormones. It participates in these processes by producing thyroid hormones, the principal ones being thyroxine (T 4) and triiodothyronine (T 3), which is more active.These hormones regulate the growth and rate of function of many other systems in the body. T 3 and T 4 are synthesized from iodine and tyrosine.yperthyroidism occurs when the gland produces excessive amounts of thyroid hormones, the most common cause being Graves' disease âan autoimmune disorder. In contrast, hypothyroidism is a state of insufficient thyroid hormone production. Worldwide, the most common cause is iodine deficiency.
Thyroid gland. The thyroid gland covers the windpipe from three sides. Two hormones of the thyroid gland, T3 (thyroxine) and T4 (triiodothyronine), help the body to produce and regulate the hormones adrenaline (also called epinephrine) and dopamine.Hormones are chemical substances that help control certain cells and organs.ther hormones from this gland also help regulate metabolism, which is the process by which calories and oxygen are converted into energy. Without a functioning thyroid, the body would not be able to break down proteins and it would not be able to process carbohydrates and vitamins.