Memory The Endocrine SystemVersión en línea Review the organs of the endocrine system and their functions. por Kathy Dilliplane Parathyroid Glands The body's "Master Gland" that controls the other endocrine organs. Testes Pancreas Regulates the female reproductive system Adrenal Glands Ovaries Regulates blood sugar levels Produces melatonin to regulate sleep cycles Helps the immune system recognize and fight pathogens Increase heart rate during a "Fight or Flight" response Regulates growth and metabolism Thymus Pineal Gland Regulate the male reproductive system Thyroid Regulates calcium levels in the blood. Pituitary