MICROANATOMY

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: -Metabolism: thyroid hormone increases the basal metabolic rate. It increases the gene expression of Na+/K+ ATPase in different tissues leading to increased oxygen consumption, respiration rate, and body temperature.

Detailed explanation-3: -Local activation of thyroxine (T4), to the active form, triiodothyronine (T3), by 5′-deiodinase type 2 (D2) is a key mechanism of TH regulation of metabolism. D2 is expressed in the hypothalamus, white fat, brown adipose tissue (BAT), and skeletal muscle and is required for adaptive thermogenesis.

Detailed explanation-4: -Thyroxine is produced from the thyroid gland, which stimulates the metabolic rate. It controls the speed at which oxygen and food products react to release energy for the body to use. Thyroxine also plays an important role in growth and development.

Detailed explanation-5: -The main functions of thyroxine are to regulate the metabolism of glucose, proteins, and cholesterol, control cellular metabolism, promote infant brain development, and control cellular metabolism. Thyroxine is released from the thyroid into 80% T4 and 20% T3. Thyroid hormones need iodine to form their molecules.