• Thyroxine - Thyroxine  hormone secreted is thydoxine and the function of thyroxine is regulates the body temperature and play an important role in growth and development.
• Insulin - it is produce by beta cells of the pancreas, and is central to regulating carbohydrate and fat metabolism in the body. Insulin causes cells in the liver, skeletal muscles and fat tissue to absorb glucose from the blood. In the liver and skeletal muscles, glucose is stored as glycogen, and in fat cells (adipocytes). it stored as triglycerides.  
• And the main function of the insulin is regulates the blood sugar level.
• Adrenaline - This hormone is secreted by adrenal. The adrenal gland is located above both kidneys. It regulates blood pressure (increasing) heartbeat, carbohydrate metabolism (during an emergency). Adrenaline is carried in the bloodstream and affects the autonomous nervous system, which controls functions such as the heart rate, dilation of the pupils, and secretion of sweat and saliva

Answer:

Thyroxine is the main hormone secreted into the bloodstream by the thyroid gland. It plays vital roles in digestion, heart and muscle function, brain development and maintenance of bones.

Explanation:

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